1
|
Kang M, Kim NR, Seok JY. Non-papillary thyroid carcinoma diagnoses in The Bethesda System for Reporting Thyroid Cytopathology categories V and VI: An institutional experience. Ann Diagn Pathol 2024; 71:152263. [PMID: 38195259 DOI: 10.1016/j.anndiagpath.2023.152263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/25/2023] [Accepted: 12/26/2023] [Indexed: 01/11/2024]
Abstract
BACKGROUND The non-papillary thyroid carcinoma (PTC) subgroups of The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) categories V (Suspicious for malignancy) and VI (Malignant) are rare, and specific tumor typing is difficult. We aimed to analyze histologic outcomes and to investigate the points of caution. METHODS We reviewed the electronic database and identified 12,215 cases of thyroid fine-needle aspiration cytology between 2013 and 2022. In total, 2783 patients were diagnosed with TBSRTC V or VI. Of these, 51 patients with non-PTC diagnosis were identified. Histological outcomes were analyzed with the cytologic findings. RESULTS The subgroups of non-PTC diagnoses in TBSRTC category V or VI consisted of medullary thyroid carcinoma (MTC) (13/51, 25.5 %), anaplastic thyroid carcinoma (3/51, 5.9 %), lymphoma (2/51, 3.9 %), metastatic tumor (4/51, 7.8 %), and malignant, not otherwise specified (NOS) (29/51, 56.9 %). The concordance rate of the histological outcomes was 30 % (12/40), predominantly comprising MTC cases. The obscuring factors for specific tumor typing in the suspicious for malignancy/malignant NOS cytology diagnosis group was mixed pattern of well differentiated thyroid carcinoma and less differentiated carcinoma cells (9/24, 37.5 %), low cellularity (7/24, 29.2 %) and a history of non-thyroid organ malignancy (6/24, 25 %). The less differentiated carcinoma component in mixed pattern consisted of 2 poorly differentiated thyroid carcinomas, 2 anaplastic thyroid carcinomas, 4 high-grade PTCs and 1 high-grade MTC. CONCLUSION The high-grade feature of PTC or MTC cytology is a noteworthy obscuring factor in specific tumor typing of non-PTC cytology diagnosis.
Collapse
Affiliation(s)
- Myunghee Kang
- Department of Pathology, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Na Rae Kim
- Department of Pathology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Jae Yeon Seok
- Department of Pathology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea.
| |
Collapse
|
2
|
Juhlin CC. The road ahead: a brief guide to navigating the 2022 WHO classification of endocrine and neuroendocrine tumours. J Clin Pathol 2024:jcp-2023-209060. [PMID: 38981664 DOI: 10.1136/jcp-2023-209060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/20/2024] [Indexed: 07/11/2024]
Abstract
The most recent WHO classification of endocrine and neuroendocrine tumours has brought about significant changes in the diagnosis and grading of these lesions. For instance, pathologists now have the ability to stratify subsets of thyroid and adrenal neoplasms using various histological features and composite risk assessment models. Moreover, novel recommendations on how to approach endocrine neoplasia involve additional immunohistochemical analyses, and the recognition and implementation of these key markers is essential for modernising diagnostic capabilities. Additionally, an improved understanding of tumour origin has led to the renaming of several entities, resulting in the emergence of terminology not yet universally recognised. The adjustments in nomenclature and prognostication may pose a challenge for the clinical team, and care providers might be eager to engage in a dialogue with the diagnosing pathologist, as treatment guidelines have not fully caught up with these recent changes. Therefore, it is crucial for a surgical pathologist to be aware of the knowledge behind the implementation of changes in the WHO classification scheme. This review article will delve into the most significant diagnostic and prognostic changes related to lesions in the parathyroid, thyroid, adrenal glands and the gastroenteropancreatic neuroendocrine system. Additionally, the author will briefly share his personal reflections on the clinical implementation, drawing from a couple of years of experience with these new algorithms.
Collapse
Affiliation(s)
- Carl Christofer Juhlin
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
3
|
Flynn A, Pattison AD, Balachander S, Boehm E, Bowen B, Dwight T, Rosello F, Hofmann O, Martelotto L, Zethoven M, Kirschner LS, Else T, Fishbein L, Gill AJ, Tischler AS, Giordano T, Prodanov T, Noble JR, Reddel RR, Trainer AH, Ghayee HK, Bourdeau I, Elston M, Ishak D, Ngeow Yuen Yie J, Hicks RJ, Crona J, Åkerström T, Stålberg P, Dahia P, Grimmond S, Clifton-Bligh R, Pacak K, Tothill RW. Multi-omic analysis of SDHB-deficient pheochromocytomas and paragangliomas identifies metastasis and treatment-related molecular profiles. RESEARCH SQUARE 2024:rs.3.rs-4410500. [PMID: 38978571 PMCID: PMC11230496 DOI: 10.21203/rs.3.rs-4410500/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Hereditary SDHB-mutant pheochromocytomas (PC) and paragangliomas (PG) are rare tumours with a high propensity to metastasize although their clinical behaviour is unpredictable. To characterize the genomic landscape of these tumours and identify metastasis biomarkers, we performed multi-omic analysis on 94 tumours from 79 patients using seven molecular methods. Sympathetic (chromaffin cell) and parasympathetic (non-chromaffin cell) PCPG had distinct molecular profiles reflecting their cell-of-origin and biochemical profile. TERT and ATRX-alterations were associated with metastatic PCPG and these tumours had an increased mutation load, and distinct transcriptional and telomeric features. Most PCPG had quiet genomes with some rare co-operative driver events observed, including EPAS1/HIF-2α mutations. Two mechanisms of acquired resistance to DNA alkylating chemotherapies were also detected - MGMT overexpression and mismatch repair-deficiency causing hypermutation. Our comprehensive multi-omic analysis of SDHB-mutant PCPG therefore identified features of metastatic disease and treatment response, expanding our understanding of these rare neuroendocrine tumours.
Collapse
Affiliation(s)
- Aidan Flynn
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
| | - Andrew D. Pattison
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
| | - Shiva Balachander
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
| | - Emma Boehm
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
| | - Blake Bowen
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
| | - Trisha Dwight
- Kolling Institute of Medical Research, Royal North Shore Hospital St Leonards NSW, Australia
| | | | - Oliver Hofmann
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
| | - Luciano Martelotto
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
| | | | - Lawrence S. Kirschner
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | | | - Lauren Fishbein
- Department of Medicine, Division of Endocrinology, Metabolism, Diabetes, University of Colorado, Aurora, CO, USA
| | - Anthony J Gill
- Sydney Medical School, University of Sydney, Sydney NSW, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards NSW, Australia
| | | | | | - Tamara Prodanov
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
| | - Jane R Noble
- Children’s Medical Research Institute, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia
| | - Roger R Reddel
- Children’s Medical Research Institute, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia
| | - Alison H. Trainer
- Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia
| | - Hans Kumar Ghayee
- University of Florida and Malcom Randall VA Medical Center, Gainesville, FL, USA
| | | | - Marianne Elston
- Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand
| | | | | | - Rodney J Hicks
- St Vincent’s Dept of Medicine, University of Melbourne, VIC, Australia
| | - Joakim Crona
- 18a Department of Medical Sciences, 18b Department of Surgical Sciences, Uppsala University, Sweden
| | - Tobias Åkerström
- 18a Department of Medical Sciences, 18b Department of Surgical Sciences, Uppsala University, Sweden
| | - Peter Stålberg
- 18a Department of Medical Sciences, 18b Department of Surgical Sciences, Uppsala University, Sweden
| | - Patricia Dahia
- Div. Hematology and Medical Oncology, Department of Medicine, Mays Cancer Center, University of Texas Health Science Center at San Antonio (UTHSCSA), TX, USA
| | - Sean Grimmond
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
| | - Roderick Clifton-Bligh
- Kolling Institute of Medical Research, Royal North Shore Hospital St Leonards NSW, Australia
- Sydney Medical School, University of Sydney, Sydney NSW, Australia
| | - Karel Pacak
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
| | - Richard W Tothill
- Centre for Cancer Research and Department of Clinical Pathology, University of Melbourne, VIC, Australia
- Children’s Medical Research Institute, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia
| |
Collapse
|
4
|
Aksoy YA, Xu B, Viswanathan K, Ahadi MS, Al Ghuzlan A, Alzumaili B, Bani MA, Barletta JA, Chau N, Chou A, Clarkson A, Clifton-Bligh RJ, De Leo A, Dogan S, Ganly I, Ghossein R, Gild ML, Glover AR, Hadoux J, Lamartina L, Lubin DJ, Magliocca K, Najdawi F, Nigam A, Papachristos A, Repaci A, Robinson BG, Sheen A, Shi Q, Sidhu SB, Sioson L, Solaroli E, Sywak MS, Tallini G, Tsang V, Turchini J, Untch BR, Gill AJ, Fuchs TL. Novel prognostic nomogram for predicting recurrence-free survival in medullary thyroid carcinoma. Histopathology 2024; 84:947-959. [PMID: 38253940 DOI: 10.1111/his.15141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/18/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024]
Abstract
AIMS Recently, there have been attempts to improve prognostication and therefore better guide treatment for patients with medullary thyroid carcinoma (MTC). In 2022, the International MTC Grading System (IMTCGS) was developed and validated using a multi-institutional cohort of 327 patients. The aim of the current study was to build upon the findings of the IMTCGS to develop and validate a prognostic nomogram to predict recurrence-free survival (RFS) in MTC. METHODS AND RESULTS Data from 300 patients with MTC from five centres across the USA, Europe, and Australia were used to develop a prognostic nomogram that included the following variables: age, sex, AJCC stage, tumour size, mitotic count, necrosis, Ki67 index, lymphovascular invasion, microscopic extrathyroidal extension, and margin status. A process of 10-fold cross-validation was used to optimize the model's performance. To assess discrimination and calibration, the area-under-the-curve (AUC) of a receiver operating characteristic (ROC) curve, concordance-index (C-index), and dissimilarity index (D-index) were calculated. Finally, the model was externally validated using a separate cohort of 87 MTC patients. The model demonstrated very strong performance, with an AUC of 0.94, a C-index of 0.876, and a D-index of 19.06. When applied to the external validation cohort, the model had an AUC of 0.9. CONCLUSIONS Using well-established clinicopathological prognostic variables, we developed and externally validated a robust multivariate prediction model for RFS in patients with resected MTC. The model demonstrates excellent predictive capability and may help guide decisions on patient management. The nomogram is freely available online at https://nomograms.shinyapps.io/MTC_ML_DFS/.
Collapse
Affiliation(s)
- Yagiz A Aksoy
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Bin Xu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kartik Viswanathan
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA, USA
| | - Mahsa S Ahadi
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Abir Al Ghuzlan
- Medical Pathology and Biology Department, Gustave Roussy Campus Cancer, Villejuif, France
| | - Bayan Alzumaili
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | - Mohamed-Amine Bani
- Medical Pathology and Biology Department, Gustave Roussy Campus Cancer, Villejuif, France
| | - Justine A Barletta
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Nicole Chau
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Angela Chou
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Adele Clarkson
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Roderick J Clifton-Bligh
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- University of Sydney Endocrine Surgery Unit, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Antonio De Leo
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Snjezana Dogan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ian Ganly
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ronald Ghossein
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Matti L Gild
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- Department of Endocrinology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Anthony R Glover
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- University of Sydney Endocrine Surgery Unit, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Julien Hadoux
- Endocrine Oncology, Gustave Roussy Campus Cancer, Villejuif, France
| | - Livia Lamartina
- Endocrine Oncology, Gustave Roussy Campus Cancer, Villejuif, France
| | - Daniel J Lubin
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA, USA
| | - Kelly Magliocca
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA, USA
| | - Fedaa Najdawi
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Aradhya Nigam
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alex Papachristos
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- University of Sydney Endocrine Surgery Unit, Royal North Shore Hospital, St Leonards, NSW, Australia
- Department of Endocrinology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Andrea Repaci
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Bruce G Robinson
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- University of Sydney Endocrine Surgery Unit, Royal North Shore Hospital, St Leonards, NSW, Australia
- Department of Endocrinology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Amy Sheen
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Qiuying Shi
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA, USA
| | - Stan B Sidhu
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- University of Sydney Endocrine Surgery Unit, Royal North Shore Hospital, St Leonards, NSW, Australia
- Department of Endocrinology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Loretta Sioson
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Erica Solaroli
- Endocrinology Unit, Azienda USL di Bologna, Bologna, Italy
| | - Mark S Sywak
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- University of Sydney Endocrine Surgery Unit, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Giovanni Tallini
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Venessa Tsang
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- Department of Endocrinology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - John Turchini
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- Douglass Hanly Moir Pathology, Macquarie Park, New South Wales, Australia
| | - Brian R Untch
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Anthony J Gill
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Talia L Fuchs
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia
- Douglass Hanly Moir Pathology, Macquarie Park, New South Wales, Australia
| |
Collapse
|
5
|
Nishino M. Cytologic risk stratification of medullary thyroid carcinoma: Does it make the grade? Cancer Cytopathol 2024; 132:209-211. [PMID: 38306309 DOI: 10.1002/cncy.22799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
Recent efforts to develop a histologic grading system for medullary thyroid carcinoma is gaining broad acceptance. How well do these grading parameters translate to cytology specimens?
Collapse
Affiliation(s)
- Michiya Nishino
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
6
|
Toraih E, Hussein M, Anker A, Baah S, Pinion D, Jishu J, Sadakkadulla S, Case M, LaForteza A, Moroz K, Kandil E. Survival Outcomes of Medullary Thyroid Cancer With and Without Amyloid Deposition. Endocr Pract 2024; 30:311-318. [PMID: 38184237 DOI: 10.1016/j.eprac.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 01/08/2024]
Abstract
OBJECTIVE Amyloid deposition within tumor stroma is a distinctive histologic feature of medullary thyroid cancer (MTC). However, its prognostic significance remains uncertain. We aimed to elucidate the impact of amyloid status on survival outcomes in a large cohort. METHODS The Surveillance, Epidemiology, and End Results registry was queried to identify patients diagnosed with MTC from 2000 to 2019. Patients with amyloid-positive (International Classification of Diseases for Oncology, third edition code 8345/3) and amyloid negative (International Classification of Diseases for Oncology, third edition code 8510/3) tumors were analyzed. Overall and disease-specific survival were compared between matched cohorts using Kaplan-Meier and Cox proportional hazards analyses. RESULTS Of the 2526 MTC patients, 511 of which were amyloid-positive and 2015 that were amyloid negative. Amyloid-positive patients displayed lower T stage (T3/4: 28% vs 85%, P < .001) and less extrathyroidal extension (11.3% vs 81.6%, P < .001). No difference in distant metastasis rate was observed between groups (14.5% vs 14.4%, P = .98). However, amyloid-positive patients showed a tendency for distal lymph node metastasis (1.2% vs 0.3%, P = .020). On univariate analysis, amyloid-positive status showed comparable overall survival times (mean 172.2 vs 177.8 months, P = .17), but a trend toward worse cancer-specific survival (hazard ratios [HR] = 1.31, 95% CI = 0.99-1.71, P = .051). After adjusting for covariates, amyloid deposition did not independently predict overall (HR = 1.15, 95% CI = 0.91-1.47, P = .25) or cancer-specific survival (HR = 1.30, 95% CI = 0.96-1.77, P = .09). Initiating therapy later than 1 month following diagnosis was associated with worse overall survival (HR = 1.25, 95% CI = 1.02-1.54, P = .029). CONCLUSIONS The presence of amyloid in MTC paradoxically associates with lower T stage yet exhibits a trend toward worse cancer-specific mortality. Amyloid deposition alone does not independently influence prognosis. Delayed treatment adversely impacted overall survival.
Collapse
Affiliation(s)
- Eman Toraih
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana; Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
| | - Mohammad Hussein
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana
| | - Allison Anker
- School of Medicine, Tulane University, New Orleans, Louisiana
| | - Solomon Baah
- School of Medicine, Tulane University, New Orleans, Louisiana
| | - Dylan Pinion
- School of Medicine, Tulane University, New Orleans, Louisiana
| | - Jessan Jishu
- School of Medicine, Tulane University, New Orleans, Louisiana
| | | | - Madeline Case
- School of Medicine, Tulane University, New Orleans, Louisiana
| | | | - Krzysztof Moroz
- Department of Pathology and Laboratory Medicine, School of Medicine, Tulane University, New Orleans, Louisiana
| | - Emad Kandil
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana
| |
Collapse
|
7
|
Chiba T. Molecular Pathology of Thyroid Tumors: Essential Points to Comprehend Regarding the Latest WHO Classification. Biomedicines 2024; 12:712. [PMID: 38672067 PMCID: PMC11048493 DOI: 10.3390/biomedicines12040712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/16/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
In 2022, the new WHO Classification of Endocrine and Neuroendocrine Tumors, Fifth Edition (beta version) (WHO 5th), was published. Large-scale genomic analyses such as The Cancer Genome Atlas (TCGA) have revealed the importance of understanding the molecular genetics of thyroid tumors. Consequently, the WHO 5th was fundamentally revised, resulting in a systematic classification based on the cell of origin of tumors and their clinical risk. This paper outlines the following critical points of the WHO 5th. 1. Genetic mutations in follicular cell-derived neoplasms (FDNs) highlight the role of mutations in the MAP kinase pathway, including RET, RAS, and BRAF, as drivers of carcinogenesis. Differentiated thyroid cancers such as follicular thyroid carcinoma (FTC) and papillary thyroid carcinoma (PTC) have specific genetic alterations that correlate with morphological classifications: RAS-like tumors (RLTs) and BRAF p.V600E-like tumors (BLTs), respectively. 2. The framework for benign lesions has been revised. The WHO 5th introduces a new category: "developmental abnormalities". Benign FDNs comprise "thyroid follicular nodular disease", follicular thyroid adenoma (FTA), FTA with papillary architecture, and oncocytic adenoma (OA). "Hürthle cell adenoma/carcinoma" is renamed oncocytic adenoma/carcinoma of the thyroid (OA/OCA), which can be distinguished from FTA/FTC by its unique genetic background. 3. Low-risk tumors include NIFTP, TT-UMP, and HTT, and they have an extremely low malignant potential or an uncertain malignant potential. 4. PTC histological variants are reclassified as "subtypes" in the WHO 5th. 5. The concept of high-grade carcinomas is introduced, encompassing poorly differentiated thyroid carcinoma (PDTC), differentiated high-grade thyroid carcinoma (DHGTC), and high-grade medullary thyroid carcinoma (MTC). 6. Squamous cell carcinoma is included in anaplastic thyroid carcinoma (ATC) in the WHO 5th due to their shared genetic and prognostic features. 7. Other miscellaneous tumors are categorized as salivary-gland-type carcinomas of the thyroid, thyroid tumors of uncertain histogenesis, thymic tumors within the thyroid, and embryonal thyroid neoplasms. The WHO 5th thus emphasizes the importance of classifying tumors based on both genetic abnormalities and histomorphology. This approach aids in achieving accurate pathological diagnosis and facilitates the early selection of appropriate treatment options, including molecular targeted therapies.
Collapse
Affiliation(s)
- Tomohiro Chiba
- Department of Cytology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan; ; Tel.: +81-3-3520-0111; Fax: +81-3-3570-0558
- Department of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan
| |
Collapse
|
8
|
Gild ML, Kumar S, Fuchs TL, Glover A, Sidhu S, Sywak M, Tsang V, Gill AJ, Robinson BG, Schembri G, Clifton-Bligh RJ, Hoang J. The Clinical Utility of Gallium-68-DOTATATE Positron Emission Tomography Scanning in Medullary Thyroid Cancer. Endocr Pract 2024; 30:218-224. [PMID: 38103829 DOI: 10.1016/j.eprac.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
OBJECTIVE Somatostatin receptor (SST) functional imaging with positron emission tomography (PET)/computed tomography (CT) has broadened the diagnostic and staging capabilities for medullary thyroid cancer (MTC). Gallium-68 (68Ga)-DOTA-conjugated peptide (Tyr3)-octreotate (DOTATATE) is a radiotracer with a high affinity for type 2 SSTs expressed in several, but not all, MTCs. The utility of 68Ga-DOTATATE PET/CT and 18fluorine-labeled fluoro-2-deoxy-D-glucose (18F-FDG)-PET/CT imaging in predicting MTC prognosis is also unknown. METHODS In this single-center retrospective study, 103 of patients with MTC underwent assessment of SST2 and SST5 immunohistochemistry (IHC). A subgroup of 37 patients received 68Ga-DOTATATE PET/CT imaging, and 13 received contemporaneous 18F-FDG-PET/CT imaging. The maximum standardized uptake value (SUV), mean SUV, metabolic tumor volume, and total lesion activity (TLA) were assessed. RESULTS Forty-two patients (41%) demonstrated positive expression of SST2, and 45 (44%) had a positive SST5 IHC result. Seventeen patients (17%) expressed both SST2 and SST5. No survival advantage was identified with SST2 or SST5 IHC positivity. No correlation was noted between the maximum SUV, mean SUV, metabolic tumor volume, or TLA and SST2 and/or SST5 expression by IHC. Shorter survival was associated with a TLA of >20 (P = .04). A RET-negative status also appeared to have shorter survival, although this may be because the small numbers did not reach statistical significance (P = .12). CONCLUSION Assessment of TLA from 68Ga-DOTATATE PET/CT may predict survival. SST2 IHC was not correlated with 68Ga-DOTATATE avidity. Metastatic disease may be optimally assessed by concurrent 18F-FDG and 68Ga-DOTATATE imaging.
Collapse
Affiliation(s)
- Matti L Gild
- Department of Endocrinology and Diabetes, Royal North Shore Hospital, Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, Australia.
| | - Shejil Kumar
- Department of Endocrinology and Diabetes, Royal North Shore Hospital, Sydney, Australia
| | - Talia L Fuchs
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, Australia; Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, Sydney, Australia
| | - Anthony Glover
- Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
| | - Stan Sidhu
- Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
| | - Mark Sywak
- Department of Endocrine Surgery, Royal North Shore Hospital, Sydney, Australia
| | - Venessa Tsang
- Department of Endocrinology and Diabetes, Royal North Shore Hospital, Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Anthony J Gill
- Faculty of Medicine and Health, University of Sydney, Sydney, Australia; NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, Australia; Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, Sydney, Australia
| | - Bruce G Robinson
- Department of Endocrinology and Diabetes, Royal North Shore Hospital, Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Geoffrey Schembri
- Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Roderick J Clifton-Bligh
- Department of Endocrinology and Diabetes, Royal North Shore Hospital, Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Jeremy Hoang
- Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia
| |
Collapse
|
9
|
Rai V, Saha A, Mehta S, Shah RA, Trivedi P, Samanta ST, Rathod P, Manimaran P. International medullary thyroid carcinoma grading system: an Indian tertiary care centre experience. Eur Arch Otorhinolaryngol 2024; 281:1571-1579. [PMID: 38010402 DOI: 10.1007/s00405-023-08341-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/06/2023] [Indexed: 11/29/2023]
Abstract
INTRODUCTION Medullary carcinoma (MTC) is a rare neuroendocrine thyroid neoplasm. The international medullary thyroid carcinoma grading scheme (IMTCGS), which has prognostic significance, has been introduced recently. The present study graded MTC cases using the IMTCGS and evaluated it in our study cohort. METHODS All MTC thyroidectomy cases over 6 years were evaluated. Low-grade (LG) and high-grade (HG) were compared. Survival analysis included overall survival (OS), loco-regional free survival and distant metastasis free survival (DMFS). RESULTS Of 32 cases, 31.25% were HG and 68.75% LG. The mean age was 44.0 years and M:F ratio 1:1.146. HG patients were older and had tumour cells with high-grade nuclear features and prominent nucleoli and showed distant metastasis. Necrosis was found more in patients with high grade nuclear features. There was discordance between the high Ki67 (60%) and increased mitotic activity (20%). Univariate survival analysis revealed poor DMFRS and OS in the cohorts with high grade, Ki67 > 5% and coagulative necrosis. The multivariate cox regression analysis showed IMTCGS significantly associated with overall survival (HR 28.30, p = 0.009) and DMFS (HR 15.70, p = 0.02). DISCUSSION AND CONCLUSION This is the first Indian study evaluating IMTCGS, a very simple and convenient grading system that can be readily used in any tertiary health care centre. IHC for Ki 67 should mandatorily be done irrespective of the low mitotic activity on the HPE and necrosis should be diligently searched in cases with high-grade nuclear morphology. HG MTC cohorts were associated with poor OS as well as DMFRS.
Collapse
Affiliation(s)
- Varnika Rai
- Onco-Pathology Department, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Anurag Saha
- Onco-Pathology Department, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Shailee Mehta
- Onco-Pathology Department, Gujarat Cancer and Research Institute, Ahmedabad, India.
| | - Rujuta Ankit Shah
- Onco-Pathology Department, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Priti Trivedi
- Onco-Pathology Department, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Satarupa T Samanta
- Onco-Pathology Department, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Priyank Rathod
- Department of Surgical Oncology, Gujarat Cancer Research Institute, Ahmedabad, India
| | - Poornima Manimaran
- Onco-Pathology Department, Gujarat Cancer and Research Institute, Ahmedabad, India
| |
Collapse
|
10
|
Censi S, Galuppini F, Clausi C, Battheu F, Manso J, Piva I, Corvaglia S, Pedron MC, Mondin A, Iacobone M, Torresan F, Merante Boschin I, Bertazza L, Barollo S, Pennelli G, Mian C. Tumor Grade and Molecular Characteristics Associated with Survival in Sporadic Medullary Thyroid Carcinoma. Thyroid 2024; 34:177-185. [PMID: 38047536 DOI: 10.1089/thy.2023.0482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Background: The International Medullary Thyroid Carcinoma Grading System (IMTCGS) divides medullary thyroid carcinoma (MTC) into two categories, high- and low-grade tumors, which has a profound impact on patient outcomes. The aim of this study was to explore the association between IMTCGS grading, clinical data, and molecular status in sporadic MTC. Methods: A retrospective cohort study was performed on consecutive sporadic MTCs from patients undergoing initial surgery between January 2000 and January 2022 at the Padua Endocrine Surgery Unit. Clinical, pathological, and follow-up data were collected, tumors were graded, and somatic mutations of RET and RAS genes were analyzed. Patient outcomes were based on Ct levels and MTC-related deaths. Survival analyses were carried out employing the Kaplan-Meier method and the log-rank test. A Cox proportional hazard regression model was employed for multivariable survival analysis with the following covariates: somatic RET mutation, MTC stage at diagnosis, sex, age at diagnosis, and IMTCGS grade. Results: We included 141 consecutive sporadic MTCs. The median follow-up was 80.0 months (interquartile ranges: 41.5-122.5 months). Seventeen patients (12.1%) died from disease-related causes. 107/141 (76.9%) were classified as low-grade tumors, 32/141 (23.1%) as high-grade. Patients carrying a RET mutation had more aggressive features and shorter disease-specific survival (DSS) (p = 0.001) and were more frequently classified high-grade than low-grade MTC (p < 0.001). At multivariable survival analysis, only IMTCGS grading was independently associated with DSS (hazard ratio 8.8 [confidence interval: 2.7-28.3], p = 0.005). RET mutations, in particular RET-M918T, were more frequent in high-grade than in low-grade MTC (68.8% vs. 29.4% mutated in RET, 46.9% vs. 12.7% mutated in RET-M918T; p < 0.001). None of the high-grade tumors was mutated in the RAS gene, but the mutation was present in 11.8% of low-grade tumors. Conclusions: IMTCGS grading was associated with DSS independently of other clinical, pathological, and molecular factors. Moreover, MTC grading was associated with RET and RAS patterns, which explains, at least in part, the molecular basis of the aggressive behavior of high-grade MTC.
Collapse
Affiliation(s)
- Simona Censi
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Francesca Galuppini
- Surgical Pathology & Cytopathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Cristina Clausi
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Fiammetta Battheu
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Jacopo Manso
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Ilaria Piva
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Sara Corvaglia
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Maria Chiara Pedron
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Alberto Mondin
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Maurizio Iacobone
- Endocrine Surgery Unit, Department of Surgical, Oncological and Gastroenterological Sciences (DiSCOG), University of Padua, Padua, Italy
| | - Francesca Torresan
- Endocrine Surgery Unit, Department of Surgical, Oncological and Gastroenterological Sciences (DiSCOG), University of Padua, Padua, Italy
| | - Isabella Merante Boschin
- Endocrine Surgery Unit, Department of Surgical, Oncological and Gastroenterological Sciences (DiSCOG), University of Padua, Padua, Italy
| | - Loris Bertazza
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Susi Barollo
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Gianmaria Pennelli
- Surgical Pathology & Cytopathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Caterina Mian
- Endocrinology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| |
Collapse
|
11
|
Xu B, Viswanathan K, Ahadi MS, Ahmadi S, Alzumaili B, Bani MA, Baudin E, Behrman DB, Capelletti M, Chau NG, Chiarucci F, Chou A, Clifton-Bligh R, Coluccelli S, de Biase D, De Leo A, Dogan S, Fagin JA, Fuchs TL, Glover AR, Hadoux J, Lacroix L, Lamartina L, Lubin DJ, Luxford C, Magliocca K, Maloberti T, Mohanty AS, Najdawi F, Nigam A, Papachristos AJ, Repaci A, Robinson B, Scoazec JY, Shi Q, Sidhu S, Solaroli E, Sywak M, Tuttle RM, Untch B, Barletta JA, Al Ghuzlan A, Gill AJ, Ghossein R, Tallini G, Ganly I. Association of the Genomic Profile of Medullary Thyroid Carcinoma with Tumor Characteristics and Clinical Outcomes in an International Multicenter Study. Thyroid 2024; 34:167-176. [PMID: 37842841 PMCID: PMC10884546 DOI: 10.1089/thy.2023.0279] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Purpose: The prognostic importance of RET and RAS mutations and their relationship to clinicopathologic parameters and outcomes in medullary thyroid carcinoma (MTC) need to be clarified. Experimental Design: A multicenter retrospective cohort study was performed utilizing data from 290 patients with MTC. The molecular profile was determined and associations were examined with clinicopathologic data and outcomes. Results: RET germ line mutations were detected in 40 patients (16.3%). Somatic RET and RAS mutations occurred in 135 (46.9%) and 57 (19.8%) patients, respectively. RETM918T was the most common somatic RET mutation (n = 75). RET somatic mutations were associated with male sex, larger tumor size, advanced American Joint Committee Cancer (AJCC) stage, vascular invasion, and high International Medullary Thyroid Carcinoma Grading System (IMTCGS) grade. When compared with other RET somatic mutations, RETM918T was associated with younger age, AJCC (eighth edition) IV, vascular invasion, extrathyroidal extension, and positive margins. RET somatic or germ line mutations were significantly associated with reduced distant metastasis-free survival on univariate analysis, but there were no significant independent associations on multivariable analysis, after adjusting for tumor grade and stage. There were no significant differences in outcomes between RET somatic and RET germ line mutations, or between RETM918T and other RET mutations. Other recurrent molecular alterations included TP53 (4.2%), ARID2 (2.9%), SETD2 (2.9%), KMT2A (2.9%), and KMT2C (2.9%). Among them, TP53 mutations were associated with decreased overall survival (OS) and disease-specific survival (DSS), independently of tumor grade and AJCC stage. Conclusions: RET somatic mutations were associated with high-grade, aggressive primary tumor characteristics, and decreased distant metastatic-free survival but this relationship was not significant after accounting for tumor grade and disease stage. RETM918T was associated with aggressive primary tumors but was not independently associated with clinical outcomes. TP53 mutation may represent an adverse molecular event associated with decreased OS and DSS in MTC, but its prognostic value needs to be confirmed in future studies.
Collapse
Affiliation(s)
- Bin Xu
- Department of Pathology and Laboratory Medicine; New York, New York, USA
| | - Kartik Viswanathan
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia, USA
| | - Mahsa S Ahadi
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Sara Ahmadi
- Division of Endocrinology and Metabolism, Department of Medicine; Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Bayan Alzumaili
- Department of Pathology and Laboratory Medicine; New York, New York, USA
| | - Mohamed-Amine Bani
- Medical Pathology and Biology Department; Service d'oncologie endocrinienne; Gustave Roussy Campus Cancer, Villejuif, France
| | - Eric Baudin
- Département d'imagerie, Service d'oncologie endocrinienne; Gustave Roussy Campus Cancer, Villejuif, France
| | - David Blake Behrman
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia, USA
| | - Marzia Capelletti
- Department of Pathology; Brigham and Women's Hospital, Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Nicole G Chau
- Department of Pathology; Brigham and Women's Hospital, Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Federico Chiarucci
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center; Bologna, Italy
| | - Angela Chou
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Roderick Clifton-Bligh
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Sara Coluccelli
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center; Bologna, Italy
| | - Dario de Biase
- Department of Pharmacy and Biotechnology; Bologna, Italy
| | - Antonio De Leo
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center; Bologna, Italy
| | - Snjezana Dogan
- Department of Pathology and Laboratory Medicine; New York, New York, USA
| | - James A Fagin
- Division of Specialized Medicine; New York, New York, USA
| | - Talia L Fuchs
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Anthony Robert Glover
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Julien Hadoux
- Département d'imagerie, Service d'oncologie endocrinienne; Gustave Roussy Campus Cancer, Villejuif, France
| | - Ludovic Lacroix
- Medical Pathology and Biology Department; Service d'oncologie endocrinienne; Gustave Roussy Campus Cancer, Villejuif, France
| | - Livia Lamartina
- Département d'imagerie, Service d'oncologie endocrinienne; Gustave Roussy Campus Cancer, Villejuif, France
| | - Daniel J Lubin
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia, USA
| | - Catherine Luxford
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Kelly Magliocca
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia, USA
| | - Thais Maloberti
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center; Bologna, Italy
| | - Abhinita S Mohanty
- Department of Pathology and Laboratory Medicine; New York, New York, USA
| | - Fedaa Najdawi
- Department of Pathology; Brigham and Women's Hospital, Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Aradhya Nigam
- Department of Surgery; Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Alexander James Papachristos
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Andrea Repaci
- Division of Endocrinology and Diabetes Prevention and Care; IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Bruce Robinson
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Jean-Yves Scoazec
- Medical Pathology and Biology Department; Service d'oncologie endocrinienne; Gustave Roussy Campus Cancer, Villejuif, France
| | - Qiuying Shi
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia, USA
| | - Stan Sidhu
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Erica Solaroli
- Endocrinology Unit, Azienda USL di Bologna, Bologna, Italy
| | - Mark Sywak
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | | | - Brian Untch
- Department of Surgery; Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Justine A Barletta
- Department of Pathology; Brigham and Women's Hospital, Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Abir Al Ghuzlan
- Medical Pathology and Biology Department; Service d'oncologie endocrinienne; Gustave Roussy Campus Cancer, Villejuif, France
| | - Anthony J Gill
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research; Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
- NSW Health Pathology, Department of Anatomical Pathology; Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Ronald Ghossein
- Department of Pathology and Laboratory Medicine; New York, New York, USA
| | - Giovanni Tallini
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center; Bologna, Italy
| | - Ian Ganly
- Department of Surgery; Memorial Sloan Kettering Cancer Center, New York, New York, USA
| |
Collapse
|
12
|
Athey JM, Vieson MD, Bailey K, Rudmann D, Baumgartner WA, Selting KA. Canine thyroid carcinomas: A review with emphasis on comparing the compact subtype of follicular thyroid carcinomas and medullary thyroid carcinomas. Vet Pathol 2024; 61:7-19. [PMID: 37306003 DOI: 10.1177/03009858231177225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Canine thyroid carcinomas are relatively common malignant endocrine neoplasms in dogs derived from either thyroid follicular cells (forming follicular thyroid carcinomas) or medullary cells (parafollicular, C-cells; forming medullary thyroid carcinomas). Older and recent clinical studies often fail to discriminate between compact cellular (solid) follicular thyroid carcinomas and medullary thyroid carcinomas, which may skew conclusions. The compact subtype of follicular thyroid carcinomas appears to be the least differentiated subtype of follicular thyroid carcinomas and needs to be differentiated from medullary thyroid carcinomas. This review includes information on the signalment, presentation, etiopathogenesis, classification, histologic and immunohistochemical diagnosis, clinical management, and biochemical and genetic derangements of canine follicular and medullary carcinomas, and their correlates with human medicine.
Collapse
|
13
|
Yamao N, Hirokawa M, Suzuki A, Higuchi M, Ishisaka T, Miyauchi A, Akamizu T. High-grade medullary thyroid carcinoma with papillary-like nuclear features: A report of five cases. Diagn Cytopathol 2024; 52:58-64. [PMID: 37846174 DOI: 10.1002/dc.25243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/03/2023] [Accepted: 10/03/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Medullary thyroid carcinoma (MTC) with papillary-like nuclear features has not been previously described. Here, we aimed to describe the unique features of MTC and examine their prognostic value as markers of high-grade MTC. METHODS Of the 110 MTC patients reviewed, a total of five (4.5%) who exhibited MTC with papillary-like nuclear features based on observations from cytological preparations were included in this study. Papillary-like nuclear features were defined as exhibiting all of the following characteristics: ground-glass chromatin pattern, grooves, indented membrane, and lobulation. RESULTS The patients included four females and one male, with a median age of 70 years. Calcitonin-doubling times for patients 1 and 3 were 0.8 and 0.34 years, respectively. Cytologically, patients 4 and 5 displayed a Ki-67 labeling index of 5.1% and necrotic cells, respectively. All three histologically evaluated patients exhibited papillary-like nuclear features and a Ki-67 labeling index of >5.0%. Patients 1 and 3 had mitotic counts of ≥5 per 2 mm2 . The MTC in all five patients was classified as high-grade. Moreover, patient 1 harbored a RET mutation (M918T), while RET (R912W), BRAF (V600E), and CTNNB1 (S33F, T41I) mutations were present in patient 2. CONCLUSION Our work suggests that papillary-like nuclear features in MTC may be associated with high-grade tumors. These findings may be cytologically indicative of high-grade tumors other than necrosis or mitosis.
Collapse
Affiliation(s)
- Naoki Yamao
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
| | | | - Ayana Suzuki
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
| | - Miyoko Higuchi
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
| | - Tomo Ishisaka
- Department of Head and Neck Surgery, Kuma Hospital, Kobe, Japan
| | | | | |
Collapse
|
14
|
Nadeem S, Hanna MG, Viswanathan K, Marino J, Ahadi M, Alzumaili B, Bani MA, Chiarucci F, Chou A, De Leo A, Fuchs TL, Lubin DJ, Luxford C, Magliocca K, Martinez G, Shi Q, Sidhu S, Ghuzlan AA, Gill AJ, Tallini G, Ghossein R, Xu B. Ki67 proliferation index in medullary thyroid carcinoma: a comparative study of multiple counting methods and validation of image analysis and deep learning platforms. Histopathology 2023; 83:981-988. [PMID: 37706239 PMCID: PMC10840805 DOI: 10.1111/his.15048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 09/15/2023]
Abstract
AIMS The International Medullary Thyroid Carcinoma Grading System, introduced in 2022, mandates evaluation of the Ki67 proliferation index to assign a histological grade for medullary thyroid carcinoma. However, manual counting remains a tedious and time-consuming task. METHODS AND RESULTS We aimed to evaluate the performance of three other counting techniques for the Ki67 index, eyeballing by a trained experienced investigator, a machine learning-based deep learning algorithm (DeepLIIF) and an image analysis software with internal thresholding compared to the gold standard manual counting in a large cohort of 260 primarily resected medullary thyroid carcinoma. The Ki67 proliferation index generated by all three methods correlate near-perfectly with the manual Ki67 index, with kappa values ranging from 0.884 to 0.979 and interclass correlation coefficients ranging from 0.969 to 0.983. Discrepant Ki67 results were only observed in cases with borderline manual Ki67 readings, ranging from 3 to 7%. Medullary thyroid carcinomas with a high Ki67 index (≥ 5%) determined using any of the four methods were associated with significantly decreased disease-specific survival and distant metastasis-free survival. CONCLUSIONS We herein validate a machine learning-based deep-learning platform and an image analysis software with internal thresholding to generate accurate automatic Ki67 proliferation indices in medullary thyroid carcinoma. Manual Ki67 count remains useful when facing a tumour with a borderline Ki67 proliferation index of 3-7%. In daily practice, validation of alternative evaluation methods for the Ki67 index in MTC is required prior to implementation.
Collapse
Affiliation(s)
- Saad Nadeem
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Matthew G. Hanna
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kartik Viswanathan
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA, USA
| | - Joseph Marino
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mahsa Ahadi
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonard, Australia
| | - Bayan Alzumaili
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mohamed-Amine Bani
- Medical Pathology and Biology Department, Gustave Roussy Campus Cancer, Villejuif, France
| | - Federico Chiarucci
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Angela Chou
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonard, Australia
| | - Antonio De Leo
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Talia L. Fuchs
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonard, Australia
| | - Daniel J Lubin
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA, USA
| | - Catherine Luxford
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonard, Australia
| | - Kelly Magliocca
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA, USA
| | - Germán Martinez
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Qiuying Shi
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA, USA
| | - Stan Sidhu
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonard, Australia
| | - Abir Al Ghuzlan
- Medical Pathology and Biology Department, Gustave Roussy Campus Cancer, Villejuif, France
| | - Anthony J. Gill
- Royal North Shore Hospital and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonard, Australia
| | - Giovanni Tallini
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna Medical Center; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Ronald Ghossein
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Bin Xu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| |
Collapse
|
15
|
Kesby N, Mechera R, Fuchs T, Papachristos A, Gild M, Tsang V, Clifton-Bligh R, Robinson B, Sywak M, Sidhu S, Chou A, Gill AJ, Glover A. Natural History and Predictive Factors of Outcome in Medullary Thyroid Microcarcinoma. J Clin Endocrinol Metab 2023; 108:2626-2634. [PMID: 36964913 PMCID: PMC10505538 DOI: 10.1210/clinem/dgad173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 03/12/2023] [Accepted: 03/22/2023] [Indexed: 03/26/2023]
Abstract
CONTEXT Management of sporadic medullary thyroid microcarcinoma smaller than 1 cm (micro-MTC) is controversial because of conflicting reports of prognosis. As these cancers are often diagnosed incidentally, they pose a management challenge when deciding on further treatment and follow-up. OBJECTIVE We report the outcomes of surgically managed sporadic micro-MTC in a specialist endocrine surgery and endocrinology unit and identify associations for recurrence and disease-specific survival in this population. METHODS Micro-MTCs were identified from a prospectively maintained surgery database, and slides were reviewed to determine pathological grade. The primary end points were recurrence, time to recurrence and disease-specific survival. Prognostic factors assessed included size, grade, lymph node metastasis (LNM), and postoperative calcitonin. RESULTS From 1995 to 2022, 64 patients were diagnosed with micro-MTC with 22 excluded because of hereditary disease. The included patients had a median age of 60 years, tumor size of 4 mm, and 28 (67%) were female. The diagnosis was incidental in 36 (86%) with 4 (10%) being high grade, 5 (12%) having LNM and 9 (21%) having elevated postoperative calcitonin. Over a 6.6-year median follow-up, 5 (12%) developed recurrence and 3 (7%) died of MTC. High grade and LNM were associated with 10-year survival estimates of 75% vs 100% for low grade and no LNM (hazard ratio = 831; P < .01). High grade, LNM, and increased calcitonin were associated with recurrence (P < .01). Tumor size and type of surgery were not statistically significantly associated with recurrence or survival. No patients with low grade micro-MTC and normal postoperative calcitonin developed recurrence. CONCLUSION Most sporadic micro-MTCs are detected incidentally and are generally associated with good outcomes. Size is not significantly associated with outcomes. Using grade, LNM, and postoperative calcitonin allows for the identification of patients at risk of recurrence to personalize management.
Collapse
Affiliation(s)
- Nicholas Kesby
- Endocrine Surgery Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW 2010, Australia
| | - Robert Mechera
- Endocrine Surgery Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
- Clarunis, University Hospital Basel, Basel, Basel-Stadt 4031, Switzerland
| | - Talia Fuchs
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW 2065, Australia
| | - Alexander Papachristos
- Endocrine Surgery Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
| | - Matti Gild
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
- Department of Endocrinology, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
| | - Venessa Tsang
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
- Department of Endocrinology, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
| | - Roderick Clifton-Bligh
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
- Department of Endocrinology, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
| | - Bruce Robinson
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
- Department of Endocrinology, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
| | - Mark Sywak
- Endocrine Surgery Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
| | - Stan Sidhu
- Endocrine Surgery Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
| | - Angela Chou
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW 2065, Australia
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
| | - Anthony J Gill
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW 2065, Australia
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
| | - Anthony Glover
- Endocrine Surgery Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW 2065, Australia
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW 2010, Australia
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2065, Australia
| |
Collapse
|
16
|
Gild ML, Clifton-Bligh RJ, Wirth LJ, Robinson BG. Medullary Thyroid Cancer: Updates and Challenges. Endocr Rev 2023; 44:934-946. [PMID: 37204852 PMCID: PMC10656709 DOI: 10.1210/endrev/bnad013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 03/19/2023] [Accepted: 05/18/2023] [Indexed: 05/20/2023]
Abstract
A personalized approach to the management of medullary thyroid cancer (MTC) presents several challenges; however, in the past decade significant progress has been made in both diagnostic and treatment modalities. Germline rearranged in transfection (RET) testing in multiple endocrine neoplasia 2 and 3, and somatic RET testing in sporadic MTC have revolutionized the treatment options available to patients. Positron emission tomography imaging with novel radioligands has improved characterization of disease and a new international grading system can predict prognosis. Systemic therapy for persistent and metastatic disease has evolved significantly with targeted kinase therapy especially for those harboring germline or somatic RET variants. Selpercatinib and pralsetinib are highly selective RET kinase inhibitors that have shown improved progression-free survival with better tolerability than outcomes seen in earlier multikinase inhibitor studies. Here we discuss changes in paradigms for MTC patients: from determining RET alteration status upfront to novel techniques for the evaluation of this heterogenous disease. Successes and challenges with kinase inhibitor use will illustrate how managing this rare malignancy continues to evolve.
Collapse
Affiliation(s)
- Matti L Gild
- Faculty of Health and Medicine, University of Sydney, Sydney 2006, Australia
- Department of Diabetes and Endocrinology, Royal North Shore Hospital, Sydney 2065, Australia
- Cancer Genetics, Kolling Institute of Medical Research, Sydney 2065, Australia
| | - Roderick J Clifton-Bligh
- Faculty of Health and Medicine, University of Sydney, Sydney 2006, Australia
- Department of Diabetes and Endocrinology, Royal North Shore Hospital, Sydney 2065, Australia
- Cancer Genetics, Kolling Institute of Medical Research, Sydney 2065, Australia
| | - Lori J Wirth
- Department of Medicine, Massachusetts General Hospital, & Harvard Medical School, Boston 02114, USA
| | - Bruce G Robinson
- Faculty of Health and Medicine, University of Sydney, Sydney 2006, Australia
- Department of Diabetes and Endocrinology, Royal North Shore Hospital, Sydney 2065, Australia
- Cancer Genetics, Kolling Institute of Medical Research, Sydney 2065, Australia
| |
Collapse
|
17
|
Behrman DB, Lubin DJ, Magliocca K, Shi Q, Viswanathan K. Exploration of Digital Image Analysis for Ki67 Quantification in the Grading of Medullary Thyroid Carcinoma: A Pilot Study with 85 Cases. Head Neck Pathol 2023; 17:638-646. [PMID: 37294412 PMCID: PMC10514252 DOI: 10.1007/s12105-023-01564-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 05/22/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND Although uncommon, medullary thyroid carcinoma (MTC) accounts for a significant proportion of thyroid cancer deaths. Recent studies have validated the two-tier International Medullary Thyroid Carcinoma Grading System (IMTCGS) to predict clinical outcomes. A 5% Ki67 proliferative index (Ki67PI) cut-off separates low-grade from high-grade MTC. In this study, we compared digital image analysis (DIA) to manual counting (MC) for determining the Ki67PI in a MTC cohort, and explored the challenges encountered. METHODS Available slides from 85 MTCs were reviewed by two pathologists. The Ki67PI was documented by immunohistochemistry for each case, scanned with the Aperio® slide scanner at 40× magnification, and quantified using the QuPath® DIA platform. The same hotspots were screenshot, printed in color, and blindly counted. For each case, over 500 MTC cells were counted. Each MTC was graded using IMTCGS criteria. RESULTS In our MTC cohort (n = 85), 84.7 and 15.3% were low- and high-grade with the IMTCGS. In the entire cohort, QuPath® DIA performed well (R2 = 0.9891) but appeared to undercall compared to MC. QuPath® performed better in high-grade cases (R2 = 0.99) compared to low-grade cases (R2 = 0.7071). Overall, Ki67PI determined with either MC or DIA did not affect IMTCGS grade. Encountered DIA challenges include optimizing cell detection, overlapping nuclei, and tissue artifacts. Encountered MC challenges include background staining, morphologic overlap with normal elements, and counting time. CONCLUSION Our study highlights the utility of DIA in quantifying Ki67PI for MTC and can serve as an adjunct for grading in conjunction with the other criteria of mitotic activity and necrosis.
Collapse
Affiliation(s)
| | - Daniel J. Lubin
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA USA
- Winship Cancer Center, Decatur, GA USA
| | - Kelly Magliocca
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA USA
- Winship Cancer Center, Decatur, GA USA
| | - Qiuying Shi
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA USA
- Winship Cancer Center, Decatur, GA USA
| | - Kartik Viswanathan
- Department of Pathology, Emory University Hospital Midtown, Atlanta, GA USA
- Winship Cancer Center, Decatur, GA USA
- Division of Head and Neck Pathology and Cytopathology, Department of Pathology and Laboratory Medicine, Emory University Hospital Midtown, 550 Peachtree St, Atlanta, GA 30309 USA
| |
Collapse
|
18
|
Torricelli F, Santandrea G, Botti C, Ragazzi M, Vezzani S, Frasoldati A, Ghidini A, Giordano D, Zanetti E, Rossi T, Nicoli D, Ciarrocchi A, Piana S. Medullary Thyroid Carcinomas Classified According to the International Medullary Carcinoma Grading System and a Surveillance, Epidemiology, and End Results-Based Metastatic Risk Score: A Correlation With Genetic Profile and Angioinvasion. Mod Pathol 2023; 36:100244. [PMID: 37307881 DOI: 10.1016/j.modpat.2023.100244] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/17/2023] [Accepted: 06/05/2023] [Indexed: 06/14/2023]
Abstract
Due to the lack of a standardized tool for risk-based stratification, the International Medullary Carcinoma Grading System (IMTCGS) has been proposed for medullary thyroid carcinomas (MTCs) based on necrosis, mitosis, and Ki67. Similarly, a risk stratification study using the Surveillance, Epidemiology, and End Results (SEER) database highlighted significant differences in MTCs in terms of clinical-pathological variables. We aimed to validate both the IMTCGS and SEER-based risk table on 66 MTC cases, with special attention to angioinvasion and the genetic profile. We found a significant association between the IMTCGS and survival because patients classified as high-grade had a lower event-free survival probability. Angioinvasion was also found to be significantly correlated with metastasis and death. Applying the SEER-based risk table, patients classified either as intermediate- or high-risk had a lower survival rate than low-risk patients. In addition, high-grade IMTCGS cases had a higher average SEER-based risk score than low-grade cases. Moreover, when we explored angioinvasion in correlation with the SEER-based risk table, patients with angioinvasion had a higher average SEER-based score than patients without angioinvasion. Deep sequencing analysis found that 10 out of 20 genes frequently mutated in MTCs belonged to a specific functional class, namely chromatin organization, and function, which may be responsible for the MTC heterogeneity. In addition, the genetic signature identified 3 main clusters; cases belonging to cluster II displayed a significantly higher number of mutations and higher tumor mutational burden, suggesting increased genetic instability, but cluster I was associated with the highest number of negative events. In conclusion, we confirmed the prognostic performance of the IMTCGS and SEER-based risk score, showing that patients classified as high-grade had a lower event-free survival probability. We also underline that angioinvasion has a significant prognostic role, which has not been incorporated in previous risk scores.
Collapse
Affiliation(s)
- Federica Torricelli
- Laboratory of Translational Research, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Giacomo Santandrea
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy; Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Cecilia Botti
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Moira Ragazzi
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy; Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Silvia Vezzani
- Endocrinology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Andrea Frasoldati
- Endocrinology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Angelo Ghidini
- Otolaryngology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Davide Giordano
- Otolaryngology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Eleonora Zanetti
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Teresa Rossi
- Laboratory of Translational Research, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Davide Nicoli
- Laboratory of Molecular Pathology, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Alessia Ciarrocchi
- Laboratory of Translational Research, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
| | - Simonetta Piana
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
| |
Collapse
|
19
|
Lubin DJ, Behrman DB, Goyal S, Magliocca K, Shi Q, Chen AY, Viswanathan K. Independent Validation of the International Grading System for Medullary Thyroid Carcinoma: A Single Institution Experience. Mod Pathol 2023; 36:100235. [PMID: 37270155 PMCID: PMC10528047 DOI: 10.1016/j.modpat.2023.100235] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/05/2023]
Abstract
Medullary thyroid carcinoma (MTC), an uncommon C cell thyroid malignancy, accounts for a disproportionate number of thyroid cancer deaths. To predict MTC clinical behavior, the recent international MTC grading system (IMTCGS) was published combining features from the Memorial Sloan Kettering Cancer Center and Royal North Shore Hospital grading systems that incorporates mitotic count, necrosis, and Ki67 proliferative index (Ki67PI). The IMTCGS appears promising, but independent validation data are limited. Here, we applied the IMTCGS to our institutional MTC cohort and assessed its ability to predict clinical outcomes. Our cohort comprised 87 MTCs (30 germline and 57 sporadic). Slides for each case were reviewed by 2 pathologists and histologic features recorded. Ki67 immunostaining was performed on all cases. Each MTC was graded with the IMTCGS based on tumor necrosis, Ki67PI, and mitotic count. Cox regression analysis was performed to assess the impact of various clinical and pathological data on disease outcomes, including overall survival (OS), disease-free survival, disease-specific survival (DSS), and distant metastasis-free survival. In our MTC cohort, 18.4% (n = 16/87) were IMTCGS high grade. IMTCGS grade was strongly prognostic for OS, disease-free survival, DSS, and distant metastasis-free survival on univariate analysis and multivariable analysis in both the entire MTC cohort and in the sporadic subset. Among the individual IMTCGS parameters, while all 3 were associated with poorer survival outcomes on univariate analysis, necrosis had the strongest association with all survival parameters on multivariable analysis, whereas Ki67PI or mitotic count was associated only with OS and DSS. This retrospective study independently demonstrates that the IMTCGS is valid for grading MTCs. Our findings support incorporating IMTCGS into routine pathology practice. IMTCGS grading may help clinicians to better predict the prognosis of MTC. Future studies may shed light on how MTC grading should impact treatment protocols.
Collapse
Affiliation(s)
- Daniel J Lubin
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia; Winship Cancer Institute, Emory University Hospital, Atlanta, Georgia
| | - David Blake Behrman
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia
| | - Subir Goyal
- Winship Cancer Institute, Emory University Hospital, Atlanta, Georgia; Biostatistics Shared Resource, Winship Cancer Institute of Emory University, Decatur, Georgia
| | - Kelly Magliocca
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia; Winship Cancer Institute, Emory University Hospital, Atlanta, Georgia
| | - Qiuying Shi
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia; Winship Cancer Institute, Emory University Hospital, Atlanta, Georgia
| | - Amy Y Chen
- Winship Cancer Institute, Emory University Hospital, Atlanta, Georgia; Division of Endocrine Surgery, Department of Otolaryngology, Emory University Hospital Midtown, Atlanta, Georgia
| | - Kartik Viswanathan
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia; Winship Cancer Institute, Emory University Hospital, Atlanta, Georgia.
| |
Collapse
|
20
|
La Rosa S. Diagnostic, Prognostic, and Predictive Role of Ki67 Proliferative Index in Neuroendocrine and Endocrine Neoplasms: Past, Present, and Future. Endocr Pathol 2023; 34:79-97. [PMID: 36797453 PMCID: PMC10011307 DOI: 10.1007/s12022-023-09755-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/31/2023] [Indexed: 02/18/2023]
Abstract
The introduction of Ki67 immunohistochemistry in the work-up of neuroendocrine neoplasms (NENs) has opened a new approach for their diagnosis and prognostic evaluation. Since the first demonstration of the prognostic role of Ki67 proliferative index in pancreatic NENs in 1996, several studies have been performed to explore its prognostic, diagnostic, and predictive role in other neuroendocrine and endocrine neoplasms. A large amount of information is now available and published results globally indicate that Ki67 proliferative index is useful to this scope, although some differences exist in relation to tumor site and type. In gut and pancreatic NENs, the Ki67 proliferative index has a well-documented and accepted diagnostic and prognostic role and its evaluation is mandatory in their diagnostic work-up. In the lung, the Ki67 index is recommended for the diagnosis of NENs on biopsy specimens, but its diagnostic role in surgical specimens still remains to be officially accepted, although its prognostic role is now well documented. In other organs, such as the pituitary, parathyroid, thyroid (follicular cell-derived neoplasms), and adrenal medulla, the Ki67 index does not play a diagnostic role and its prognostic value still remains a controversial issue. In medullary thyroid carcinoma, the Ki67 labelling index is used to define the tumor grade together with other morphological parameters, while in the adrenal cortical carcinoma, it is useful to select patients to treated with mitotane therapy. In the present review, the most important information on the diagnostic, prognostic, and predictive role of Ki67 proliferative index is presented discussing the current knowledge. In addition, technical issues related to the evaluation of Ki67 proliferative index and the future perspectives of the application of Ki67 immunostaining in endocrine and neuroendocrine neoplasms is discussed.
Collapse
Affiliation(s)
- Stefano La Rosa
- Unit of Pathology, Department of Medicine and Surgery, University of Insubria, Via O. Rossi 9, Varese, 21100, Italy.
- Unit of Pathology, Department of Oncology, ASST Sette Laghi, Varese, Italy.
| |
Collapse
|
21
|
Jung CK, Agarwal S, Hang JF, Lim DJ, Bychkov A, Mete O. Update on C-Cell Neuroendocrine Neoplasm: Prognostic and Predictive Histopathologic and Molecular Features of Medullary Thyroid Carcinoma. Endocr Pathol 2023; 34:1-22. [PMID: 36890425 DOI: 10.1007/s12022-023-09753-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/24/2023] [Indexed: 03/10/2023]
Abstract
Medullary thyroid carcinoma (MTC) is a C-cell-derived epithelial neuroendocrine neoplasm. With the exception of rare examples, most are well-differentiated epithelial neuroendocrine neoplasms (also known as neuroendocrine tumors in the taxonomy of the International Agency for Research on Cancer [IARC] of the World Health Organization [WHO]). This review provides an overview and recent evidence-based data on the molecular genetics, disease risk stratification based on clinicopathologic variables including molecular profiling and histopathologic variables, and targeted molecular therapies in patients with advanced MTC. While MTC is not the only neuroendocrine neoplasm in the thyroid gland, other neuroendocrine neoplasms in the thyroid include intrathyroidal thymic neuroendocrine neoplasms, intrathyroidal parathyroid neoplasms, and primary thyroid paragangliomas as well as metastatic neuroendocrine neoplasms. Therefore, the first responsibility of a pathologist is to distinguish MTC from other mimics using appropriate biomarkers. The second responsibility includes meticulous assessment of the status of angioinvasion (defined as tumor cells invading through a vessel wall and forming tumor-fibrin complexes, or intravascular tumor cells admixed with fibrin/thrombus), tumor necrosis, proliferative rate (mitotic count and Ki67 labeling index), and tumor grade (low- or high-grade) along with the tumor stage and the resection margins. Given the morphologic and proliferative heterogeneity in these neoplasms, an exhaustive sampling is strongly recommended. Routine molecular testing for pathogenic germline RET variants is typically performed in all patients with a diagnosis of MTC; however, multifocal C-cell hyperplasia in association with at least a single focus of MTC and/or multifocal C-cell neoplasia are morphological harbingers of germline RET alterations. It is of interest to assess the status of pathogenic molecular alterations involving genes other than RET like the MET variants in MTC families with no pathogenic germline RET variants. Furthermore, the status of somatic RET alterations should be determined in all advanced/progressive or metastatic diseases, especially when selective RET inhibitor therapy (e.g., selpercatinib or pralsetinib) is considered. While the role of routine SSTR2/5 immunohistochemistry remains to be further clarified, evidence suggests that patients with somatostatin receptor (SSTR)-avid metastatic disease may also benefit from the option of 177Lu-DOTATATE peptide radionuclide receptor therapy. Finally, the authors of this review make a call to support the nomenclature change of MTC to C-cell neuroendocrine neoplasm to align this entity with the IARC/WHO taxonomy since MTCs represent epithelial neuroendocrine neoplasms of endoderm-derived C-cells.
Collapse
Affiliation(s)
- Chan Kwon Jung
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
| | - Shipra Agarwal
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Jen-Fan Hang
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine and Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Dong-Jun Lim
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Andrey Bychkov
- Department of Pathology, Kameda Medical Center, Kamogawa, Chiba, 296-8602, Japan
| | - Ozgur Mete
- Department of Pathology, University Health Network, Toronto, ON, M5G 2C4, Canada
- Endocrine Oncology Site, Princess Margaret Cancer, Toronto, ON, M5G 2C4, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, M5G 2C4, Canada
| |
Collapse
|
22
|
Xu P, Wu D, Liu X. A proposed grading scheme for predicting recurrence in medullary thyroid cancer based on the Ki67 index and metastatic lymph node ratio. Endocrine 2023:10.1007/s12020-023-03328-4. [PMID: 36823341 DOI: 10.1007/s12020-023-03328-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 02/10/2023] [Indexed: 02/25/2023]
Abstract
PURPOSE The Ki67 index and lymph node ratio (LNR) have been proposed as components of alternative pathological classification schemes, but the most appropriate classification for patients with medullary thyroid cancer (MTC) remains unknown. The aim of the present study was to examine the usefulness of a new grading system combining the Ki67 index and LNR as a predictor of prognostic and disease-free survival (DFS) in MTC. METHODS We conducted a retrospective study of patients with MTC who were registered at Sun Yat-sen University Cancer Center, Guangzhou, P. R. China from June 2003 to October 2021. The DFS rates were assessed using risk-adjusted Cox proportional hazard regression modeling to explore the relationship among pathological features, nutritional status and DFS. The Ki67 index (cutoff value: 5% and 10%) and LNR (cutoff value: 0.2 and 0.3) were combined to create a new grading system. RESULTS In total, 101 matched patients were assessed. The integrated grading system showed better separation of Kaplan Meier (KM) curves for DFS. As the grading stage progressed, there was a significant stepwise decrease in DFS, which was better than Ki67, LNR and N staging alone. According to the grading system, the high-risk group had a worse prognosis. CONCLUSION The proposed grading scheme demonstrated a better prognostic performance in MTC patients than the Ki67, LNR and N staging alone. However, larger scale studies are needed to further verify our findings.
Collapse
Affiliation(s)
- Pengfei Xu
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China
- State Key Laboratory of Oncology in South China, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China
- Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China
| | - Di Wu
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China
- State Key Laboratory of Oncology in South China, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China
- Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China
| | - Xuekui Liu
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China.
- State Key Laboratory of Oncology in South China, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China.
- Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng East Road, Guangzhou, Guangdong, 510060, PR China.
| |
Collapse
|
23
|
Vázquez-Lorente H, Dunđerović DM, Tatić SB, Radojević-Škodrić S, Gomes CM, Paunović IR, Dragutinović V. Matrix Metalloproteinases 2 and 9 and Their Tissue Inhibitors in the Diagnostics of Medullary Thyroid Carcinoma. Appl Immunohistochem Mol Morphol 2023; 31:121-127. [PMID: 36512647 DOI: 10.1097/pai.0000000000001092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 11/02/2022] [Indexed: 12/15/2022]
Abstract
Medullary Thyroid Carcinoma (MTC) is a tumor of the neuroendocrine system. In recent years, the need to assess the MTC diagnostic-related parameters has emerged with the aim to elucidate the mechanisms involved in this pathology. The objective of this study was to evaluate the role of Matrix Metalloproteinases (MMPs) 2 and 9, their tissue inhibitors of matrix metalloproteinases (TIMPs), S100 protein, and amyloid in the diagnostic of MTC. Thirty-two samples with MTC (72% women) were included in this cross-sectional study and divided by groups: T category 1 (T1)≤20 mm and T category 2 (T2) 20 to 40 mm of tumor size. MMPs 2 and 9, TIMPs 2 and 1, S100 protein, and calcitonin in tissues were obtained by immunohistochemical techniques. The presence of amyloid in tissue sections was detected on Thioflavin T-stained slides under fluorescent microscope. Percentage of positive cells (P) observed for MMP-2 was higher in those samples presenting T2 MTC with respect to those with T1 MTC ( P <0.05). Moreover, P-MMP-2 showed a direct correlation with higher T category of MTC (Rho=0.439, P < 0.001), whereas P-MPP-9 was directly correlated with S100 protein and the intensity of calcitonin in tissues (Rho=0.419, P =0.017; Rho=0.422, P =0.016, respectively. Therefore, MMPs were directly correlated with some traditional biomarkers of MTC. In this regard, P-MMP-2 was more expressed in type 2 MTC. Combining the analysis of traditional and other useful biomarkers of MTC as MMPs 2 and 9 could be a useful strategy in the diagnostic of MTC.
Collapse
Affiliation(s)
- Héctor Vázquez-Lorente
- Department of Physiology, School of Pharmacy, Institute of Nutrition and Food Technology "José Mataix," University of Granada, Granada, Spain
| | | | | | | | - Cláudio M Gomes
- Institute of Biosystems & Integrative Sciences
- Department of Chemistry and Biochemistry, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Ivan R Paunović
- Faculty of Medicine, University of Belgrade
- Center for Endocrine Surgery, Clinical Center of Serbia
| | - Vesna Dragutinović
- Institute of Chemistry in Medicine, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| |
Collapse
|
24
|
Christofer Juhlin C, Mete O, Baloch ZW. The 2022 WHO classification of thyroid tumors: novel concepts in nomenclature and grading. Endocr Relat Cancer 2023; 30:ERC-22-0293. [PMID: 36445235 DOI: 10.1530/erc-22-0293] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/23/2022] [Indexed: 11/25/2022]
Abstract
The fifth edition of the Classification of Endocrine and Neuroendocrine Tumors has been released by the World Health Organization. This timely publication integrates several changes to the nomenclature of non-neoplastic and neoplastic thyroid diseases, as well as novel concepts that are essential for patient management. The heterogeneous group of non-neoplastic and benign neoplastic lesions are now collectively termed as 'thyroid follicular nodular disease' to better reflect the clonal and non-clonal proliferations that clinically present as multinodular goiter. Thyroid neoplasms originating from follicular cells are distinctly divided into benign, low-risk and malignant neoplasms. The new classification scheme stresses that papillary thyroid carcinoma (PTC) should be subtyped based on histomorphologic features irrespective of tumor size to avoid treating all sub-centimeter/small lesions as low-risk disease. Formerly known as the cribriform-morular variant of PTC is redefined as cribriform-morular thyroid carcinoma since this tumor is now considered a distinct malignant thyroid neoplasm of uncertain histogenesis. The 'differentiated high-grade thyroid carcinoma' is a new diagnostic category including PTCs, follicular thyroid carcinomas and oncocytic carcinomas with high-grade features associated with poorer prognosis similar to the traditionally defined poorly differentiated thyroid carcinoma as per Turin criteria. In addition, squamous cell carcinoma of the thyroid is now considered a morphologic pattern/subtype of anaplastic thyroid carcinoma. In this review, we will highlight the key changes in the newly devised fifth edition of the WHO classification scheme of thyroid tumors with reflections on its applicability in patient management and future directions in this field.
Collapse
Affiliation(s)
- C Christofer Juhlin
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Ozgur Mete
- Department of Pathology, University Health Network, Toronto, ON, Canada
- Endocrine Oncology Site, Princess Margaret Cancer Centre, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Zubair W Baloch
- Department of Pathology & Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| |
Collapse
|
25
|
Podany P, Meiklejohn K, Garritano J, Holt EH, Barbieri A, Prasad M, Gilani SM. Grading system for medullary thyroid carcinoma; an institutional experience. Ann Diagn Pathol 2023; 64:152112. [PMID: 36736129 DOI: 10.1016/j.anndiagpath.2023.152112] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/05/2022] [Accepted: 01/27/2023] [Indexed: 02/01/2023]
Abstract
OBJECTIVE Medullary thyroid carcinoma (MTC) is a rare type of thyroid malignancy. Recently, a two-tier grading system (GS) for MTC has been suggested. We conducted this study to evaluate the generalizability, as well as application of recently proposed GS to our cohort of Medullary thyroid carcinoma (MTC) cases. METHODS We assigned grades to MTC cases and divided them into two groups by using morphologic criteria only as suggested by recent studies: low-grade (LG, <5 mitosis per 2 mm2, and no necrosis) and high-grade (HG, ≥5 mitosis per 2mm2 or necrosis). RESULTS A total of 59 MTC cases were evaluated and of those 52 (88 %) were LG and 7 (12 %) were HG. Vascular invasion (VI) (p = 0.017), distant metastasis (DM) (p < 0.0001), nuclear pleomorphism (NP) (p = 0.017) and prominent nucleoli (p = 0.03) were prominently noted in the HG group. After controlling for demographics using multivariate cox regression, tumor grade and necrosis remained significantly associated with the overall survival (HR = 22.7, p < 0.01 and HR = 11.1, p = 0.008, respectively). Upon comparing the cases with and without nodal disease, we found that nodal disease is more strongly associated with NP (p = 0.029), tumor fibrosis (p = 0.0001), VI (p = 0.001) and DM (p = 0.005). CONCLUSIONS We applied the two-tier GS for MTC to our cohort of cases and found statistically significant differences in the overall survival among the two groups. Adding the grading to the pathology report communicates additional information regarding risk stratification in MTC.
Collapse
Affiliation(s)
- Peter Podany
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States of America
| | - Karleen Meiklejohn
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States of America; Currently affiliated with Memorial Sloan Kettering Cancer Center, New York, United States of America
| | - James Garritano
- Applied Mathematics Program, Yale University, New Haven, CT, United States of America; Medical Scientist Training Program, Yale School of Medicine, New Haven, CT, United States of America
| | - Elizabeth H Holt
- Department of Medicine (Endocrinology), Yale School of Medicine, New Haven, CT, United States of America
| | - Andrea Barbieri
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States of America
| | - Manju Prasad
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States of America
| | - Syed M Gilani
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States of America.
| |
Collapse
|
26
|
Wijewardene A, Bastard K, Wang B, Gild M, Luxford C, Gill A, Robinson B, Bullock M, Clifton-Bligh R. A Case Report of Poor Response to Selpercatinib in the Presence of a 632_633 RET Deletion. Thyroid 2023; 33:119-125. [PMID: 36416226 DOI: 10.1089/thy.2021.0680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Background: Genomic deletions in medullary thyroid cancer (MTC) are rare. Selpercatinib is a highly selective RET inhibitor for treatment of metastatic RET-altered MTC. We report a 35-year-old male with an aggressive metastatic MTC harboring p.632_633del RET that was poorly responsive to RET kinase inhibitor selpercatinib. Objective: Our objective was to understand the clinical phenotype of p.632_633del RET in MTC in the context of novel RET kinase inhibitor treatment. Methods: Wild-type and p.632_633del RET sequences were modeled using a lighter version of the AlphaFold2 (AF2) software. Functional studies were performed on transfected HEK 293 cells (pCMV6-Entry, pCMV6-RET, or pCMV6-RET(p.632_633del) treated with inhibitors for 24 hours and analyzed on luciferase assays. Results: Structural modeling revealed a paucity of disulfide bridge between Cys630-Cys634 in p.632_633del RET sequences, apparent in wild-type, while forming an intermolecular disulfide bridge between two Cys656. Proximity of juxtamembrane segments of each dimer may impede Tyr687 phosphorylation and stable conformation of intracellular RET that hosts selpercatinib. In vitro experiments confirmed a reduction in efficacy of selpercatinib upon p.632_633del RET compared with wild-type RET control. Conclusion: Clinical presentation together with structural modeling and functional studies suggests that p.632_633del RET results in poor response to selpercatinib.
Collapse
Affiliation(s)
- Ayanthi Wijewardene
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Cancer Genetics Laboratory, Kolling Institute, University of Sydney, Sydney, Australia
- Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Karine Bastard
- Cancer Genetics Laboratory, Kolling Institute, University of Sydney, Sydney, Australia
- University of Sydney School of Pharmacy, Sydney, Australia
| | - Bin Wang
- Precision Medicine, Syd Path, St. Vincent's Hospital, Sydney, Australia
- St Vincent's Clinical School, University of New South Wales, Sydney, Australia
| | - Matti Gild
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Cancer Genetics Laboratory, Kolling Institute, University of Sydney, Sydney, Australia
- Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Catherine Luxford
- Cancer Genetics Laboratory, Kolling Institute, University of Sydney, Sydney, Australia
| | - Anthony Gill
- Faculty of Medicine, University of Sydney, Sydney, Australia
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, Sydney, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, Australia
| | - Bruce Robinson
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Cancer Genetics Laboratory, Kolling Institute, University of Sydney, Sydney, Australia
- Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Martyn Bullock
- Cancer Genetics Laboratory, Kolling Institute, University of Sydney, Sydney, Australia
- Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Roderick Clifton-Bligh
- Department of Endocrinology, Royal North Shore Hospital, Sydney, Australia
- Cancer Genetics Laboratory, Kolling Institute, University of Sydney, Sydney, Australia
- Faculty of Medicine, University of Sydney, Sydney, Australia
| |
Collapse
|
27
|
Bai Y, Guo T, Niu D, Zhu Y, Ren W, Yao Q, Huang X, Feng Q, Wang T, Ma X, Ji X. Clinical significance and interrelations of PD-L1 expression, Ki-67 index, and molecular alterations in sporadic medullary thyroid carcinoma from a Chinese population. Virchows Arch 2022; 481:903-911. [PMID: 35920918 DOI: 10.1007/s00428-022-03390-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 06/30/2022] [Accepted: 07/24/2022] [Indexed: 12/14/2022]
Abstract
Immunotherapy shows prospects in treating advanced medullary thyroid carcinoma although controversial reports are present. Recently, histological grading has been applied to medullary thyroid carcinoma by the Ki-67 index, mitotic figures, and tumor necrosis. However, the interrelation of PD-L1 expression, the Ki-67 index, and major genetic alterations of sporadic medullary thyroid carcinoma has not been fully reported. We examined the expression of PD-L1 (SP142 and 22C3) and the Ki-67 index immunohistologically and detected the major genetic alterations by next-generation sequencing in a cohort of sporadic medullary thyroid carcinomas, studied their survival impact, and discussed their interrelation. We identified that a high Ki-67 index (> 2%) and positive RET M918T mutation were correlated with poor disease-free survival but were not correlated with PD-L1 expression. All PD-L1 positive tumors were RET M918T mutation negative, and PD-L1 expression was positively correlated with HRAS mutation. The Ki-67 index was correlated with neither PD-L1 expression nor major genetic alterations. Our results indicate that immunotherapy targeting PD-L1/PD-1 might be more effective for patients with sporadic medullary thyroid carcinoma harboring HRAS mutations.
Collapse
Affiliation(s)
- Yanhua Bai
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China.
| | - Ting Guo
- Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - Dongfeng Niu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Yanli Zhu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Wenhao Ren
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Qian Yao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiaozheng Huang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Qin Feng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Tianxiao Wang
- Department of Head and Neck Surgery, Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiuli Ma
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Xinqiang Ji
- Department of Medical Statistics, Peking University Cancer Hospital & Institute, Beijing, China.
| |
Collapse
|
28
|
Vissio E, Maletta F, Fissore J, Osella Abate S, Retta F, Brizzi MP, Piovesan A, Rossetto Giaccherino R, Volante M, Papotti M. External Validation of Three Available Grading Systems for Medullary Thyroid Carcinoma in a Single Institution Cohort. Endocr Pathol 2022; 33:359-370. [PMID: 35583706 DOI: 10.1007/s12022-022-09719-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/28/2022] [Indexed: 12/17/2022]
Abstract
Medullary thyroid carcinoma (MTC) is a rare thyroid carcinoma with a variable clinical behavior. Potential clinical and pathological prognostic markers have been investigated, but studies are limited and controversial. In neuroendocrine neoplasms of various other sites, necrosis and proliferation (mitotic activity and/or Ki67 index) are integrated to provide a histological grade. Recently, an International Medullary Thyroid Carcinoma Grading System (IMTCGS) has been designed to define high- or low-grade MTC by combining proliferative activity and necrosis. This proposal integrates two previously published grading schemes by American (2-tiered grading, low- and high-grade MTC) and Australian authors (3-tiered grading, low-, intermediate-, and high-grade MTC). To validate the clinical role of these systems, their prognostic impact was evaluated in an independent cohort of 111 MTCs. Necrosis, which was the only parameter integrated into the 3 grading systems, proved to be individually correlate with tumor relapse, while no association was found with the proliferation (mitotic count and Ki67 index); however, by combining the different parameters according to all three grading systems, "high-grade" MTCs turned out to be significantly associated with the disease recurrence (p < 0.005) in all systems. In disease-free survival analysis, the IMTCGS stratification was the only one that demonstrated a significant impact at Cox regression analysis (p = 0.004), further confirmed by the Kaplan-Meier curves (p = 0.002). Similar findings were also reproduced when analysis was restricted to sporadic MTCs (68 cases). In conclusion, our results confirm the prognostic role of IMTCGS, supporting the importance of incorporating this information into the pathology report. However, none of the systems proved to predict the overall survival in this validation cohort.
Collapse
Affiliation(s)
- Elena Vissio
- Pathology Unit, "Città Della Salute E Della Scienza" Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Francesca Maletta
- Pathology Unit, "Città Della Salute E Della Scienza" Hospital, Turin, Italy.
| | - Jessica Fissore
- Pathology Unit, "Città Della Salute E Della Scienza" Hospital, Turin, Italy
| | | | - Francesca Retta
- Endocrine Oncology Unit, "Città Della Salute E Della Scienza" Hospital, Turin, Italy
| | | | - Alessandro Piovesan
- Endocrine Oncology Unit, "Città Della Salute E Della Scienza" Hospital, Turin, Italy
| | | | - Marco Volante
- Pathology Unit, San Luigi Gonzaga Hospital, Orbassano, Turin, Italy
- Department of Oncology, University of Turin, Orbassano, Turin, Italy
| | - Mauro Papotti
- Pathology Unit, "Città Della Salute E Della Scienza" Hospital, Turin, Italy
- Department of Oncology, University of Turin, Orbassano, Turin, Italy
| |
Collapse
|
29
|
Asa SL, Mete O. Medullary Thyroid Carcinoma in the IARC/WHO Neuroendocrine Schema. Endocr Pathol 2022; 33:346-347. [PMID: 35939257 DOI: 10.1007/s12022-022-09728-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/02/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Sylvia L Asa
- Department of Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Institute of Pathology, Room 204, 11100 Euclid Avenue, Cleveland, OH, 44106, USA.
| | - Ozgur Mete
- Department of Pathology, University Health Network, University of Toronto, Toronto General Hospital (UHN), 200 Elizabeth Street, 11th floor, Toronto, ON, M5G 2C4, Canada.
| |
Collapse
|
30
|
Williams JF, Zhao M, Najdawi F, Ahmadi S, Hornick JL, Wong KS, Barletta JA. Grading of Medullary Thyroid Carcinoma: an Interobserver Reproducibility Study. Endocr Pathol 2022; 33:371-377. [PMID: 35553368 DOI: 10.1007/s12022-022-09718-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/03/2022] [Indexed: 02/01/2023]
Abstract
Grade, based on proliferative activity and tumor necrosis, has recently been shown to be prognostic in medullary thyroid carcinoma (MTC) in multivariate analysis. The aim of this study was to evaluate the interobserver reproducibility of assessed grade in MTC. Three groups (each group included one resident/fellow and one attending pathologist) independently evaluated a cohort of 44 sporadic MTC. For each case, all available tumor slides were reviewed, and mitotic count and the presence of tumor necrosis were recorded. Ki-67 was performed, and the Ki-67 proliferative index was determined in the area of highest proliferative activity. Tumors were graded according to the recently published International Medullary Thyroid Carcinoma Grading System (IMTCGS). Kappa statistics were calculated for each individual criterion (mitotic count, Ki-67 proliferative index, and necrosis) and for assigned IMTCGS grade. For our cohort of 44 MTCs, the kappa statistic for mitotic count, Ki-67 proliferative index, and necrosis was 0.68, 0.86, and 0.89, respectively. The kappa statistic for assigned IMTCGS grade was 0.87. Our findings indicate that there was a strong level of agreement for assessment of grade in our cohort of MTC, indicating that grade as assessed by the IMTCGS is not only prognostic but also reproducible.
Collapse
Affiliation(s)
- Jessica F Williams
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, USA
| | - Melissa Zhao
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, USA
| | - Fedaa Najdawi
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, USA
| | - Sara Ahmadi
- Division of Endocrinology, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Jason L Hornick
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, USA
| | - Kristine S Wong
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
- Harvard Medical School, Boston, MA, USA
| | - Justine A Barletta
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA.
- Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
31
|
Fuchs TL, Chou A, Ahadi M, Sheen A, Sioson L, Mittal A, Samra J, Gill AJ. Necrosis is an independent predictor of disease-free and overall survival in pancreatic well-differentiated neuroendocrine tumours (NETs): a proposal to include it in grading systems. Pathology 2022; 54:855-862. [DOI: 10.1016/j.pathol.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/27/2022] [Accepted: 05/08/2022] [Indexed: 11/16/2022]
|
32
|
Baloch ZW, Asa SL, Barletta JA, Ghossein RA, Juhlin CC, Jung CK, LiVolsi VA, Papotti MG, Sobrinho-Simões M, Tallini G, Mete O. Overview of the 2022 WHO Classification of Thyroid Neoplasms. Endocr Pathol 2022; 33:27-63. [PMID: 35288841 DOI: 10.1007/s12022-022-09707-3] [Citation(s) in RCA: 340] [Impact Index Per Article: 170.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/27/2022] [Indexed: 12/15/2022]
Abstract
This review summarizes the changes in the 5th edition of the WHO Classification of Endocrine and Neuroendocrine Tumors that relate to the thyroid gland. The new classification has divided thyroid tumors into several new categories that allow for a clearer understanding of the cell of origin, pathologic features (cytopathology and histopathology), molecular classification, and biological behavior. Follicular cell-derived tumors constitute the majority of thyroid neoplasms. In this new classification, they are divided into benign, low-risk, and malignant neoplasms. Benign tumors include not only follicular adenoma but also variants of adenoma that are of diagnostic and clinical significance, including the ones with papillary architecture, which are often hyperfunctional and oncocytic adenomas. For the first time, there is a detailed account of the multifocal hyperplastic/neoplastic lesions that commonly occur in the clinical setting of multinodular goiter; the term thyroid follicular nodular disease (FND) achieved consensus as the best to describe this enigmatic entity. Low-risk follicular cell-derived neoplasms include non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP), thyroid tumors of uncertain malignant potential, and hyalinizing trabecular tumor. Malignant follicular cell-derived neoplasms are stratified based on molecular profiles and aggressiveness. Papillary thyroid carcinomas (PTCs), with many morphological subtypes, represent the BRAF-like malignancies, whereas invasive encapsulated follicular variant PTC and follicular thyroid carcinoma represent the RAS-like malignancies. This new classification requires detailed subtyping of papillary microcarcinomas similar to their counterparts that exceed 1.0 cm and recommends not designating them as a subtype of PTC. The criteria of the tall cell subtype of PTC have been revisited. Cribriform-morular thyroid carcinoma is no longer classified as a subtype of PTC. The term "Hürthle cell" is discouraged, since it is a misnomer. Oncocytic carcinoma is discussed as a distinct entity with the clear recognition that it refers to oncocytic follicular cell-derived neoplasms (composed of > 75% oncocytic cells) that lack characteristic nuclear features of PTC (those would be oncocytic PTCs) and high-grade features (necrosis and ≥ 5 mitoses per 2 mm2). High-grade follicular cell-derived malignancies now include both the traditional poorly differentiated carcinoma as well as high-grade differentiated thyroid carcinomas, since both are characterized by increased mitotic activity and tumor necrosis without anaplastic histology and clinically behave in a similar manner. Anaplastic thyroid carcinoma remains the most undifferentiated form; squamous cell carcinoma of the thyroid is now considered as a subtype of anaplastic carcinoma. Medullary thyroid carcinomas derived from thyroid C cells retain their distinct section, and there is a separate section for mixed tumors composed of both C cells and any follicular cell-derived malignancy. A grading system for medullary thyroid carcinomas is also introduced based on mitotic count, tumor necrosis, and Ki67 labeling index. A number of unusual neoplasms that occur in the thyroid have been placed into new sections based on their cytogenesis. Mucoepidermoid carcinoma and secretory carcinoma of the salivary gland type are now included in one section classified as "salivary gland-type carcinomas of the thyroid." Thymomas, thymic carcinomas and spindle epithelial tumor with thymus-like elements are classified as "thymic tumors within the thyroid." There remain several tumors whose cell lineage is unclear, and they are listed as such; these include sclerosing mucoepidermoid carcinoma with eosinophilia and cribriform-morular thyroid carcinoma. Another important addition is thyroblastoma, an unusual embryonal tumor associated with DICER1 mutations. As in all the WHO books in the 5th edition, mesenchymal and stromal tumors, hematolymphoid neoplasms, germ cell tumors, and metastatic malignancies are discussed separately. The current classification also emphasizes the value of biomarkers that may aid diagnosis and provide prognostic information.
Collapse
Affiliation(s)
- Zubair W Baloch
- Department of Pathology & Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Sylvia L Asa
- Department of Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - Justine A Barletta
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ronald A Ghossein
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - C Christofer Juhlin
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Chan Kwon Jung
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Virginia A LiVolsi
- Department of Pathology & Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Manuel Sobrinho-Simões
- Department of Pathology, Institute of Molecular Pathology and Immunology, IPATIMUP, University of Porto, Porto, Portugal
| | - Giovanni Tallini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
- IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Ozgur Mete
- Department of Pathology, University Health Network, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
33
|
Xu B, Fuchs TL, Ahmadi S, Alghamdi M, Alzumaili B, Bani MA, Baudin E, Chou A, De Leo A, Fagin JA, Ganly I, Glover A, Hartl D, Kanaan C, Khneisser P, Najdawi F, Nigam A, Papachristos A, Repaci A, Spanheimer PM, Solaroli E, Untch BR, Barletta JA, Tallini G, Al Ghuzlan A, Gill AJ, Ghossein RA. International Medullary Thyroid Carcinoma Grading System: A Validated Grading System for Medullary Thyroid Carcinoma. J Clin Oncol 2022; 40:96-104. [PMID: 34731032 PMCID: PMC8683221 DOI: 10.1200/jco.21.01329] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
PURPOSE Medullary thyroid carcinoma (MTC) is an aggressive neuroendocrine tumor (NET) arising from the calcitonin-producing C cells. Unlike other NETs, there is no widely accepted pathologic grading scheme. In 2020, two groups separately developed slightly different schemes (the Memorial Sloan Kettering Cancer Center and Sydney grade) on the basis of proliferative activity (mitotic index and/or Ki67 proliferative index) and tumor necrosis. Building on this work, we sought to unify and validate an internationally accepted grading scheme for MTC. PATIENTS AND METHODS Tumor tissue from 327 patients with MTC from five centers across the United States, Europe, and Australia were reviewed for mitotic activity, Ki67 proliferative index, and necrosis using uniform criteria and blinded to other clinicopathologic features. After reviewing different cutoffs, a two-tiered consensus grading system was developed. High-grade MTCs were defined as tumors with at least one of the following features: mitotic index ≥ 5 per 2 mm2, Ki67 proliferative index ≥ 5%, or tumor necrosis. RESULTS Eighty-one (24.8%) MTCs were high-grade using this scheme. In multivariate analysis, these patients demonstrated decreased overall (hazard ratio [HR] = 11.490; 95% CI, 3.118 to 32.333; P < .001), disease-specific (HR = 8.491; 95% CI, 1.461 to 49.327; P = .017), distant metastasis-free (HR = 2.489; 95% CI, 1.178 to 5.261; P = .017), and locoregional recurrence-free (HR = 2.114; 95% CI, 1.065 to 4.193; P = .032) survivals. This prognostic power was maintained in subgroup analyses of cohorts from each of the five centers. CONCLUSION This simple two-tiered international grading system is a powerful predictor of adverse outcomes in MTC. As it is based solely on morphologic assessment in conjunction with Ki67 immunohistochemistry, it brings the grading of MTCs in line with other NETs and can be readily applied in routine practice. We therefore recommend grading of MTCs on the basis of mitotic count, Ki67 proliferative index, and tumor necrosis.
Collapse
Affiliation(s)
- Bin Xu
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Talia L. Fuchs
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia,University of Sydney, Sydney, NSW, Australia
| | - Sara Ahmadi
- Department of Medicine, Division of Endocrinology and Metabolism, Brigham and Women's Hospital, Boston, Harvard Medical School, MA
| | - Mohammed Alghamdi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Bayan Alzumaili
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Mohamed-Amine Bani
- Medical Pathology and Biology Department, Gustave Roussy Campus Cancer, Villejuif, France
| | - Eric Baudin
- Department of Endocrine Oncology and Nuclear Medicine, Gustave Roussy Cancer Campus Grand Paris, Villejuif, France
| | - Angela Chou
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia,University of Sydney, Sydney, NSW, Australia
| | - Antonio De Leo
- Pathology Unit-Azienda USL di Bologna, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - James A. Fagin
- Division of Subspecialty Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ian Ganly
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Anthony Glover
- University of Sydney, Sydney, NSW, Australia,Endocrine Surgical Unit, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Dana Hartl
- Department of Surgery, Gustave Roussy Cancer Campus Grand Paris, Villejuif, France
| | - Christina Kanaan
- Medical Pathology and Biology Department, Gustave Roussy Campus Cancer, Villejuif, France
| | - Pierre Khneisser
- Medical Pathology and Biology Department, Gustave Roussy Campus Cancer, Villejuif, France
| | - Fedaa Najdawi
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | - Aradhya Nigam
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Alex Papachristos
- University of Sydney, Sydney, NSW, Australia,Endocrine Surgical Unit, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Andrea Repaci
- Endocrinology Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, Bologna, Italy
| | | | - Erica Solaroli
- Endocrinology Unit-Azienda USL di Bologna, Bologna, Italy
| | - Brian R. Untch
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Giovanni Tallini
- Pathology Unit-Azienda USL di Bologna, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Abir Al Ghuzlan
- Medical Pathology and Biology Department, Gustave Roussy Campus Cancer, Villejuif, France
| | - Anthony J. Gill
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, Australia,University of Sydney, Sydney, NSW, Australia
| | - Ronald A. Ghossein
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY,Ronald A. Ghossein, MD, Department of Pathology, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY 10065; e-mail:
| |
Collapse
|
34
|
Zhang D, Colombo C, Sun H, Kim HY, Pino A, De Leo S, Gazzano G, Persani L, Dionigi G, Fugazzola L. Unilateral Surgery for Medullary Thyroid Carcinoma: Seeking for Clinical Practice Guidelines. Front Endocrinol (Lausanne) 2022; 13:875875. [PMID: 35898450 PMCID: PMC9309363 DOI: 10.3389/fendo.2022.875875] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/15/2022] [Indexed: 11/21/2022] Open
Abstract
Optimized preoperative diagnostic tools with calcitonin tests, ultrasound features, functional imaging modalities, and genetic testing to detect hereditary forms have led to an increased rate of earlier diagnosis and surgery for medullary thyroid cancer (MTC). This helps to adapt the primary surgery to the tumor stage and avoid surgical overtreatment for localized tumor growth, i.e., deviating from the regularly recommended thyroidectomy with bilateral central lymph node dissection in favor of a limited unilateral approach. To limit primary surgical therapy, it is crucial that the MTC is clinically unifocal, sporadic, and confined to the thyroid, and that calcitonin levels indicate biochemical recovery after surgery. The main requirement for such a limited approach is the availability of frozen section studies that reliably indicate (i) R0 resection of the MTC, (ii) absence of infiltration of the organ capsule, (iii) lack of desmoplasia (i.e., evidence of the metastatic potential of the MTC), (iiii) absence of contralateral disease or precancerous lesions. Informed consent is mandatory from the patient, who has been fully informed of the advantages, disadvantages, and potential risks of not undergoing the "classic" surgical procedure. The aim of this article is to review the guidelines for the management of early-stage MTC.
Collapse
Affiliation(s)
- Daqi Zhang
- Division of Thyroid Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Surgical Translational Medicine, Jilin Provincial Engineering Laboratory of Thyroid Disease Prevention and Control, Changchun City, China
| | - Carla Colombo
- Division of Endocrine and Metabolic Diseases, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- *Correspondence: Carla Colombo, ; Hui Sun,
| | - Hui Sun
- Division of Thyroid Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Surgical Translational Medicine, Jilin Provincial Engineering Laboratory of Thyroid Disease Prevention and Control, Changchun City, China
- *Correspondence: Carla Colombo, ; Hui Sun,
| | - Hoon Yub Kim
- Korea University College of Medicine (KUMC) Thyroid Center, Department of Surgery, Korea University Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Antonella Pino
- Division of Surgery, Istituto Auxologico Italiano INstituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
- Department of Human Pathology of Adulthood and Childhood, University of Messina, Messina, Italy
| | - Simone De Leo
- Division of Endocrine and Metabolic Diseases, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, Milan, Italy
| | - Giacomo Gazzano
- Pathology Unit, Istituto Auxologico Italiano INstituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - Luca Persani
- Division of Endocrine and Metabolic Diseases, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, Milan, Italy
- Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Gianlorenzo Dionigi
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Division of Surgery, Istituto Auxologico Italiano INstituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - Laura Fugazzola
- Division of Endocrine and Metabolic Diseases, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| |
Collapse
|
35
|
Yang B, Niu G, Li X, Ma F, Ma Y, Hu S. Lobectomy may be more appropriate for patients with early-stage medullary thyroid cancer older than 60 years old. Front Endocrinol (Lausanne) 2022; 13:1015319. [PMID: 36339396 PMCID: PMC9633650 DOI: 10.3389/fendo.2022.1015319] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/10/2022] [Indexed: 12/27/2022] Open
Abstract
PURPOSE Clinical guidelines presently recommend total thyroidectomy for the treatment of medullary thyroid cancer (MTC). This study was aimed to investigate whether lobectomy could be the initial treatment for stage I MTC patients. METHODS The retrospective study was based on data from the Surveillance, Epidemiology, and End Results (SEER) database between 2004 and 2015. The risk factors of survival were estimated by the univariate and multivariate Cox proportional-hazards model. The effect of age on death risk was estimated using restricted cubic splines. Survival curves were constructed according to the Kaplan-Meier method. RESULTS A total of 988 stage I MTC patients was included in the study. Among them, 506 (51.2%) MTC patients received lobectomy and 482 (48.8%) received total thyroidectomy. The only independent prognostic factor for overall survival (OS) and disease-specific survival (DSS) was age, according to univariate and multivariate Cox regression analysis. The hazard ratio (HR) increased relatively slowly with age growing under the age of approximately 60 years. However, the death risk of MTC patients began to rise sharply with increasing age above 60 years. For patients under the age of 60, a significant survival difference for OS and DSS was observed between the lobectomy group and total thyroidectomy group (p < 0.05). However, for patients aged above 60, no significant survival difference was observed for OS or DSS (p > 0.05). CONCLUSION Total thyroidectomy was an appropriate treatment for stage I MTC patients under the age of 60, which was consistent with the recommendation of the clinical guidelines. However, for those over the age of 60, lobectomy may be explored as a better surgical option. The findings may provide the evidence base for improving the clinical management of stage I MTC patients. Further prospective multicenter clinical studies are needed including information regarding RET status as well as calcitonin and CEA levels.
Collapse
Affiliation(s)
- Binfeng Yang
- Department of Oncology, Suzhou Ninth People’s Hospital, Suzhou, China
| | - Guangcai Niu
- Department of Gastrointestinal Surgery, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University, Xuzhou, China
| | - Xiaoxin Li
- Department of Pathology, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University, Xuzhou, China
| | - Fenfen Ma
- Department of Ultrasound, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University, Xuzhou, China
- *Correspondence: Shaojun Hu, ; Yanhong Ma, ; Fenfen Ma,
| | - Yanhong Ma
- Department of Stomatology, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University, Xuzhou, China
- *Correspondence: Shaojun Hu, ; Yanhong Ma, ; Fenfen Ma,
| | - Shaojun Hu
- Department of Oncology, Suzhou Ninth People’s Hospital, Suzhou, China
- *Correspondence: Shaojun Hu, ; Yanhong Ma, ; Fenfen Ma,
| |
Collapse
|
36
|
Emerging Biomarkers in Thyroid Practice and Research. Cancers (Basel) 2021; 14:cancers14010204. [PMID: 35008368 PMCID: PMC8744846 DOI: 10.3390/cancers14010204] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/17/2021] [Accepted: 12/29/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Tumor biomarkers are molecules at genetic or protein level, or certain evaluable characteristics. These help in perfecting patient management. Over the past decade, advanced and more sensitive techniques have led to the identification of many new biomarkers in the field of oncology. A knowledge of the recent developments is essential for their application to clinical practice, and furthering research. This review provides a comprehensive account of such various markers identified in thyroid carcinoma, the most common endocrine malignancy. While some of these have been brought into use in routine patient management, others are novel and need more research before clinical application. Abstract Thyroid cancer is the most common endocrine malignancy. Recent developments in molecular biological techniques have led to a better understanding of the pathogenesis and clinical behavior of thyroid neoplasms. This has culminated in the updating of thyroid tumor classification, including the re-categorization of existing and introduction of new entities. In this review, we discuss various molecular biomarkers possessing diagnostic, prognostic, predictive and therapeutic roles in thyroid cancer. A comprehensive account of epigenetic dysregulation, including DNA methylation, the function of various microRNAs and long non-coding RNAs, germline mutations determining familial occurrence of medullary and non-medullary thyroid carcinoma, and single nucleotide polymorphisms predisposed to thyroid tumorigenesis has been provided. In addition to novel immunohistochemical markers, including those for neuroendocrine differentiation, and next-generation immunohistochemistry (BRAF V600E, RAS, TRK, and ALK), the relevance of well-established markers, such as Ki-67, in current clinical practice has also been discussed. A tumor microenvironment (PD-L1, CD markers) and its influence in predicting responses to immunotherapy in thyroid cancer and the expanding arena of techniques, including liquid biopsy based on circulating nucleic acids and plasma-derived exosomes as a non-invasive technique for patient management, are also summarized.
Collapse
|
37
|
A Critical Assessment of Current Grading Schemes for Diffuse Pleural Mesothelioma With a Proposal for a Novel Mesothelioma Weighted Grading Scheme (MWGS). Am J Surg Pathol 2021; 46:774-785. [PMID: 34907994 DOI: 10.1097/pas.0000000000001854] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Although there is early support for schemes based on nuclear grade, necrosis and mitotic rate, there is currently no widely implemented grading system for diffuse pleural mesothelioma (DPM). We investigated current systems and propose a novel Mesothelioma Weighted Grading Scheme (MWGS). The MWGS assigns weighted scores from 0 to 10 based on age (≤74, >74 yrs: 0,1); histologic type (epithelioid, biphasic, sarcomatoid: 0,1,2); necrosis (absent, present: 0,2); mitotic count per 2 mm2 (≤1, 2 to 4, ≥5: 0,1,2); nuclear atypia (mild, moderate, severe: 0,1,2); and BRCA1-associated protein 1 (BAP1) expression (lost, retained: 0,1). A score of 0 to 3 is low grade, 4 to 6 intermediate grade, and 7 to 10 high grade. In 369 consecutive DPMs, median survival was 17.1, 10.1, and 4.1 months for low, intermediate, and high grades (P<0.0001). A progressive increase in score correlated with worsening overall survival (P<0.0001). Interobserver concordance was substantial (κ=0.588), with assessment of nuclear grade being the most subjective parameter (κ=0.195). We compared the MWGS to the 2-tiered system discussed in the World Health Organization (WHO) fifth edition. The WHO system predicted median survival in epithelioid (median 18.0 vs. 11.3 mo, P=0.003) and biphasic (16.2 vs. 4.2 mo, P=0.002), but not sarcomatoid DPM (5.4 vs. 4.7 mo, P=0.407). Interestingly, the WHO grading system was prognostic in cases with BAP1 loss (median survival 18.7 vs. 10.4 mo, P<0.0001), but not retained BAP1 expression (8.9 vs. 6.2 mo, P=0.061). In conclusion, the WHO scheme has merit in epithelioid/biphasic and BAP1-deficient DPM, however, the MWGS can be used for risk stratification of all DPMs, regardless of histologic subtype and BAP1 status.
Collapse
|
38
|
Kesby NL, Papachristos AJ, Gild M, Aniss A, Sywak MS, Clifton-Bligh R, Sidhu SB, Glover AR. Outcomes of Advanced Medullary Thyroid Carcinoma in the Era of Targeted Therapy. Ann Surg Oncol 2021; 29:64-71. [PMID: 34716515 DOI: 10.1245/s10434-021-10980-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/08/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Medullary thyroid carcinoma (MTC) can be targeted with tyrosine kinase inhibitors (TKIs). We aimed to report the outcomes of surgically managed MTC and to evaluate the impact of TKI use on patient survival. METHODS Consecutive patients treated surgically for MTC from 1986 to 2020 were identified from a prospectively collected database and were compared on the basis of stage at operation and TKI use. The primary outcome was overall survival (OS). RESULTS Among 154 patients with a median age of 52 years, 40% presented with stage I/II disease and 60% presented with advanced (stage III or IV) disease. During a median follow-up of 7.5 years, 21% received TKIs for systemic disease. Those presenting with advanced disease were more likely to receive a TKI (31% vs. 7%), present with tumor invasion of the recurrent laryngeal nerve (RLN; 12% vs. 0%) and undergo reoperation (42% vs. 23%) compared with stage I-II patients. For the 11 patients found to have invasion of the RLN, five had preoperative functional vocal cords. Five-year OS was 84% for advanced disease, and stage IV patients who received TKIs had a median survival of 21 years, versus 15 years for those who did not (p = 0.3). CONCLUSIONS Surgery achieves long-term survival for patients with advanced disease, however these patients are at greater risk of requiring RLN resection due to invasion. A significant OS benefit was not seen for TKI use. For patients with local invasion, neoadjuvant TKI therapy may have a role in reducing local morbidity if confirmed to be of benefit in clinical trials.
Collapse
Affiliation(s)
- Nicholas L Kesby
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, Sydney, NSW, Australia.,Faculty of Medicine, Garvan Institute of Medical Research, Endocrine Cancer Program, The Kinghorn Cancer Centre and St. Vincent's Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Alexander J Papachristos
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, Sydney, NSW, Australia
| | - Matti Gild
- Faculty of Medicine and Health, Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Hormones and Cancer Group, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, Sydney, NSW, Australia
| | - Ahmad Aniss
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, Sydney, NSW, Australia
| | - Mark S Sywak
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, Sydney, NSW, Australia.,Faculty of Medicine and Health, Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Roderick Clifton-Bligh
- Faculty of Medicine and Health, Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Hormones and Cancer Group, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, Sydney, NSW, Australia
| | - Stan B Sidhu
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, Sydney, NSW, Australia.,Faculty of Medicine and Health, Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Hormones and Cancer Group, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, Sydney, NSW, Australia
| | - Anthony R Glover
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, Sydney, NSW, Australia. .,Faculty of Medicine, Garvan Institute of Medical Research, Endocrine Cancer Program, The Kinghorn Cancer Centre and St. Vincent's Clinical School, University of New South Wales, Sydney, NSW, Australia. .,Faculty of Medicine and Health, Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.
| |
Collapse
|
39
|
Najdawi F, Ahmadi S, Capelletti M, Dong F, Chau NG, Barletta JA. Evaluation of grade in a genotyped cohort of sporadic medullary thyroid carcinomas. Histopathology 2021; 79:427-436. [PMID: 33763905 DOI: 10.1111/his.14370] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 12/19/2022]
Abstract
AIMS Tumour grade and RET mutation status, especially the presence of high-risk exon 15 and 16 RET mutations, have been reported to be prognostic in patients with sporadic medullary thyroid carcinoma (MTC). The aims of our study were to evaluate the performance of two recently proposed grading systems and to assess the association between grade and genotype in a cohort of sporadic MTCs. METHODS AND RESULTS We identified 44 sporadic MTCs. All available tumour slides were examined, and cases were assigned a grade on the basis of either mitotic count and tumour necrosis, or mitotic count, tumour necrosis, and Ki-67 proliferative index, as described in two recent studies. Additional clinicopathological features and outcome information were obtained from the pathology reports and electronic medical records. The presence of RET and RAS mutations was determined either with direct sequencing or with massively parallel sequencing. Both grading systems were prognostic for progression-free survival and disease-specific survival on univariate analysis. There was no correlation between grade and mutation status. Specifically, neither RET nor high-risk RET mutations were enriched in high-grade tumours, as assessed by either grading scheme. CONCLUSION Our findings suggest that grade is not correlated with RET/RAS mutation status, indicating that grade and genotype may give independent prognostic information.
Collapse
Affiliation(s)
- Fedaa Najdawi
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Sara Ahmadi
- Division of Endocrinology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Marzia Capelletti
- Lowe Center for Thoracic Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Fei Dong
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Nicole G Chau
- Head and Neck Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Justine A Barletta
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
40
|
Abstract
This paper will review neuroendocrine lesions of the thyroid and the differential diagnosis with the most significant such tumor of the thyroid, that is, medullary thyroid carcinoma. A brief overview of the understanding of this tumor's identification as a lesion of C cells and its familial and syndromic associations will be presented. Then, a discussion of the various mimics of medullary carcinoma will be given with an approach to the types of tests that can be done to arrive at a correct diagnostic conclusion. This review will focus on practical "tips" for the practicing pathologist.
Collapse
Affiliation(s)
- Virginia A Livolsi
- Department of Pathology and Laboratory Medicine, Perelmann School of Medicine, University of Pennsylvania, Philadelphia, USA.
| |
Collapse
|
41
|
Wong KS, Dong F, Telatar M, Lorch JH, Alexander EK, Marqusee E, Cho NL, Nehs MA, Doherty GM, Afkhami M, Barletta JA. Papillary Thyroid Carcinoma with High-Grade Features Versus Poorly Differentiated Thyroid Carcinoma: An Analysis of Clinicopathologic and Molecular Features and Outcome. Thyroid 2021; 31:933-940. [PMID: 33143568 DOI: 10.1089/thy.2020.0668] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background: Similar to poorly differentiated thyroid carcinoma (PDTC), papillary thyroid carcinoma with high-grade features (PTC HGF) demonstrates increased mitotic activity and/or necrosis; however, PTC HGF is excluded from the World Health Organization (WHO) definition of PDTC based on maintained nuclear features of PTC. Methods: Consecutive tumors that met criteria for PTC HGF, defined as tumors with maintained nuclear features of PTC and mitoses numbering 5 or more per 10 contiguous high-power fields and/or tumor necrosis, and PDTC (defined as per the WHO criteria) were identified. Clinicopathologic characteristics, follow-up data, and targeted next-generation sequencing results were compared between groups. Results: There were 15 PTC HGF and 47 PDTC. PTC HGF was associated with a higher rate of pT4 disease (53% vs. 13%, p = 0.0027) and lymph node metastases (73% vs. 38%, p = 0.049). The disease-specific survival was worse for patients with PTC HGF compared with those with PDTC using Kaplan-Meier estimation (p < 0.001) and was worse in subgroup analysis evaluating patients with widely invasive PDTC (i.e., those with a similar rate of pT4 disease) and PTC HGF (p = 0.040). PTC HGF had a higher BRAFV600E mutation rate (42% vs. 3%; p = 0.003), a trend toward more gene fusions (25% vs. 3%; p = 0.052), and a higher rate of relative gain of 1q (67% vs. 15%; p = 0.002) than PDTC. Conclusions: Our results demonstrate that PTC HGF are important to recognize based on their aggressive behavior. The molecular differences between PTC HGF and PDTC suggest that PTC HGF should be considered a distinct group from PDTC.
Collapse
Affiliation(s)
- Kristine S Wong
- Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA
| | - Fei Dong
- Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA
| | - Milhan Telatar
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Jochen H Lorch
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Erik K Alexander
- Division of Endocrinology, Harvard Medical School, Boston, Massachusetts, USA
| | - Ellen Marqusee
- Division of Endocrinology, Harvard Medical School, Boston, Massachusetts, USA
| | - Nancy L Cho
- Division of Endocrinology, Harvard Medical School, Boston, Massachusetts, USA
| | - Matthew A Nehs
- Department of Surgery; Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gerard M Doherty
- Department of Surgery; Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Michelle Afkhami
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Justine A Barletta
- Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
42
|
Romei C, Ramone T, Mulè C, Prete A, Cappagli V, Lorusso L, Torregrossa L, Basolo F, Ciampi R, Elisei R. RET mutated C-cells proliferate more rapidly than non-mutated neoplastic cells. Endocr Connect 2021; 10:124-130. [PMID: 33475524 PMCID: PMC7983519 DOI: 10.1530/ec-20-0589] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/15/2021] [Indexed: 12/26/2022]
Abstract
A statistically significant higher prevalence of the RET p.Met918Thr somatic mutation, identified by direct sequencing, was previously reported in MTC > 2 cm than in smaller tumors. Aim of this study was to correlate the full RET and RAS mutation profile, identified by a Next Generation Sequencing approach, with the growth rate, proliferation and tumor size of MTC. Data of 149 sporadic MTC patients were correlated with RET mutations and Ki67 positivity. Eighty-one cases had a somatic RET mutation, 40 had a RAS mutation and 28 were negative. A statistically significant higher prevalence of RET mutations was found in MTC > 2 cm. A higher prevalence of RET more aggressive mutations, higher allelic frequencies and, higher percentage of Ki67 positive cells were found in larger tumors which had also a worse outcome. Our study highlights the predominant role of RET somatic mutations in MTC tumorigenesis. We demonstrate that RET mutation prevalence and allelic frequency (AF) are significantly higher in larger tumors. Based on these results, we can conclude that RET mutated C-cells's growth and proliferation are more rapid than those of non-mutated cells and give origin to bigger and more aggressive MTC.
Collapse
Affiliation(s)
- Cristina Romei
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Teresa Ramone
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Chiara Mulè
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Alessandro Prete
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Virginia Cappagli
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Loredana Lorusso
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Liborio Torregrossa
- Department of Surgical, Medical, Molecular Pathology, University of Pisa, Pisa, Italy
| | - Fulvio Basolo
- Department of Surgical, Medical, Molecular Pathology, University of Pisa, Pisa, Italy
| | - Raffaele Ciampi
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Rossella Elisei
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
- Correspondence should be addressed to R Elisei:
| |
Collapse
|
43
|
Abstract
Improvements in preoperative diagnostic modalities in conjunction with highly sensitive calcitonin assays, ultrasound and functional imaging modalities and differentiated genetic testing for detection of hereditary forms, have enabled detection and resection of medullary thyroid carcinoma at an increasingly earlier stage. These developments open up possibilities to deescalate primary surgery adapted to these stages and avoid surgical overtreatment in locally limited tumor growth: thus, promoting a shift from routinely recommended total thyroidectomy with bilateral central lymph node dissection in favor of limited unilateral thyroid resection. Prerequisites for limited thyroid resection include clinical evidence that the tumor is sporadic, unifocal and confined to the thyroid. Corresponding calcitonin levels should also indicate that a biochemical cure will be achieved after unilateral resection. A decisive structural prerequisite for such a limited concept is the low threshold availability of intraoperative frozen section analysis that reliably detects and evaluates a medullary thyroid carcinoma and can assess a breach of the thyroid capsule and desmoplasia with certainty.
Collapse
|
44
|
Ghossein R, Barletta JA, Bullock M, Johnson SJ, Kakudo K, Lam AK, Moonim MT, Poller DN, Tallini G, Tuttle RM, Xu B, Gill AJ. Data set for reporting carcinoma of the thyroid: recommendations from the International Collaboration on Cancer Reporting. Hum Pathol 2020; 110:62-72. [PMID: 32920035 DOI: 10.1016/j.humpath.2020.08.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 08/28/2020] [Indexed: 12/29/2022]
Abstract
Thyroid cancer therapy is increasingly tailored to patients' risk of recurrence and death, placing renewed importance on pathologic parameters. The International Collaboration on Cancer Reporting (ICCR), an organization promoting evidence-based, internationally agreed-upon standardized pathology data sets, is the ideal conduit for the development of a pathology reporting protocol aimed at improving the care of patients with thyroid carcinomas. An international expert panel reviewed each element of thyroid pathology reporting. Recommendations were made based on the most recent literature and expert opinion.The data set uses the most recent World Health Organization (WHO) classification for the purpose of a more clinically and prognostically relevant nomenclature. One example is the restriction of the term minimally invasive follicular carcinoma to tumors with capsular invasion only. It reinforces the already established criteria for blood vessel invasion adopted by the most recent WHO classification and Armed Forces Institute of Pathology fascicle. It emphasizes the importance of the extent of blood vessel invasion and extrathyroid extension to better stratify patients for appropriate therapy. It is the first data set that requires pathologists to use the more recently recognized prognostically powerful parameters of mitotic activity and tumor necrosis. It highlights the importance of assessing nodal disease volume in predicting the risk of recurrence.The ICCR thyroid data set provides the tools to generate a report that will guide patient treatment in a more rational manner aiming to prevent the undertreatment of threatening malignancies and spare patients with indolent tumors the morbidity of unnecessary therapy. We recommend its routine use internationally for reporting thyroid carcinoma histology.
Collapse
Affiliation(s)
- Ronald Ghossein
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, USA.
| | - Justine A Barletta
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Martin Bullock
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, B3H 4R2 Canada
| | - Sarah J Johnson
- Department of Cellular Pathology, Royal Victoria Infirmary, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, NE1 4LP, UK
| | - Kennichi Kakudo
- Department of Pathology and Thyroid Disease Centre, Izumi City General Hospital, Izumi, 594-0073, Japan
| | - Alfred K Lam
- Department of Pathology, School of Medicine, Gold Coast Campus, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Mufaddal T Moonim
- Department of Histopathology, Guy's & St. Thomas' NHS Foundation Trust, London, SE1 9RT, UK
| | - David N Poller
- Department of Pathology, Queen Alexandra Hospital, Portsmouth, PO6 3LY, UK
| | - Giovanni Tallini
- Department of Pathology, University of Bologna Medical Center, 40138, Bologna, Italy
| | - R Michael Tuttle
- Endocrinology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Bin Xu
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, USA
| | - Anthony J Gill
- University of Sydney, Sydney, New South Wales, 2006, Australia; Cancer Diagnosis and Pathology Group Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW, 2065, Australia; NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St Leonards, NSW, 2065, Australia
| |
Collapse
|