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Rusiecki JA, McAdam J, Denic-Roberts H, Sjodin A, Davis M, Jones R, Hoang TD, Ward MH, Ma S, Zhang Y. Organochlorine pesticides and risk of papillary thyroid cancer in U.S. military personnel: a nested case-control study. Environ Health 2024; 23:28. [PMID: 38504322 PMCID: PMC10949709 DOI: 10.1186/s12940-024-01068-0] [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: 12/04/2023] [Accepted: 03/01/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND The effects of organochlorine pesticide (OCP) exposure on the development of human papillary thyroid cancer (PTC) are not well understood. A nested case-control study was conducted with data from the U.S. Department of Defense Serum Repository (DoDSR) cohort between 2000 and 2013 to assess associations of individual OCPs serum concentrations with PTC risk. METHODS This study included 742 histologically confirmed PTC cases (341 females, 401 males) and 742 individually-matched controls with pre-diagnostic serum samples selected from the DoDSR. Associations between categories of lipid-corrected serum concentrations of seven OCPs and PTC risk were evaluated for classical PTC and follicular PTC using conditional logistic regression, adjusted for body mass index category and military branch to compute odds ratios (OR) and 95% confidence intervals (CIs). Effect modification by sex, birth cohort, and race was examined. RESULTS There was no evidence of associations between most of the OCPs and PTC, overall or stratified by histological subtype. Overall, there was no evidence of an association between hexachlorobenzene (HCB) and PTC, but stratified by histological subtype HCB was associated with significantly increased risk of classical PTC (third tertile above the limit of detection (LOD) vs.
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Affiliation(s)
- Jennifer A Rusiecki
- Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Room E-2009, Bethesda, MD, 20814, USA.
| | - Jordan McAdam
- Murtha Cancer Center Research Program, 4494 North Palmer Road, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, 1401 Rockville Pike, Rockville, MD, USA
| | - Hristina Denic-Roberts
- Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Room E-2009, Bethesda, MD, 20814, USA
- Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
| | - Andreas Sjodin
- Division of Laboratory Sciences, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Mark Davis
- Division of Laboratory Sciences, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Richard Jones
- Division of Laboratory Sciences, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Thanh D Hoang
- Division of Endocrinology, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Mary H Ward
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Shuangge Ma
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - Yawei Zhang
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
- Department of Cancer Prevention and Control, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Ji J, Shi X. Gene mutations as predictors of central lymph mode metastasis in cN0 PTC: A meta-analysis. Clin Genet 2024; 105:130-139. [PMID: 37985961 DOI: 10.1111/cge.14456] [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: 10/03/2023] [Revised: 11/02/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
Gene mutations could predict the tumor progression and prognosis, which are us to predict CLNM in patients with cN0 PTC, however, these results are not consistent. This meta-analysis tried to identify gene mutations which could predict CLNM in patients with cN0 PTC. A systematic search was performed for identifying relevant literature published prior to July 2023 in three search engines: PubMed, EMBASE and Web of Science. Studies that investigated the gene mutations for CLNM in patients with cN0 PTC were included in our meta-analysis. Sixteen studies, including 6095 cN0 PTC with BRAF mutations were include in our meta-analysis. The prevalence of CLNM in cN0 PTC ranged from 13.7% to 50.6%. The pooled analysis demonstrated that BRAFV600E mutation is significantly associated with CLNM (OR = 2.01, 95% CI: 1.55-2.60, p < 0.001) in PTC and PTMC (OR = 1.70, 95% CI: 0.51-1.81, p < 0.001). Whereas, cN0 PTC with TERT (OR = 1.94, 95% CI: 0.51-7.36, p = 0.33) and KRAS (OR = 0.57, 95% CI: 0.51-1.81, p = 0.34) mutations might not contribute to predict CLNM. Our analysis identified that BRAF mutation was a predictive factor for cN0 PTC, as well as for cN0 PTMC, which could be useful for clinician to accurately choose prophylactic CLND and better manage cN0 PTC.
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Affiliation(s)
- Jiaqi Ji
- Department of Ultrasound, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of Ultrasound, Aerospace Center Hospital, Beijing, China
| | - Xinlong Shi
- Department of Ultrasound, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Mohorea I, Socea B, Carâp AC, Șerban D, Ceaușu Z, Ceauşu M. Morphometric study in thyroid tumors. Exp Ther Med 2023; 26:497. [PMID: 37745041 PMCID: PMC10515107 DOI: 10.3892/etm.2023.12196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 08/11/2023] [Indexed: 09/26/2023] Open
Abstract
Various morphonuclear studies using digital image analysis have been taken into account in order to establish the malignancy of thyroid lesions based on their size and on the chromatographic characteristics of tumor cell nuclei. Nuclear morphometry involves the measurement of nuclear parameters to obtain diagnostically important information in an objective and reproducible manner. The aim of the present study was to evaluate the detailed morphometric analysis of histopathological preparations with lesions of the thyroid gland and to investigate its role in differentiating between benign and malignant thyroid lesions. The present study included 10 benign and 26 malignant thyroid cases with different selected thyroid lesions. Using a microscope connected to a computerized video system, nuclear morphometric parameters including the nuclear area, perimeter, average intensity, red average, width and roundness, were measured and analyzed. The main parameters used in the statistical calculation were significant in distinguishing between benign and malignant thyroid lesions. The association of morphometry in cytological smears for suspected malignant follicular lesions led to increased accuracy in establishing a suspicious malignant diagnosis for follicular lesions. Nuclear morphometry provides an unbiased point of view that increases diagnosis accuracy. Computerized morphometry can positively influence diagnostic accuracy, allowing for a better correlation with clinical and imaging data.
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Affiliation(s)
- Iuliana Mohorea
- Department of Pathology, Brăila Emergency County Hospital, Brăila 810325, Romania
| | - Bogdan Socea
- Department of Surgery, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
| | | | - Dragoş Șerban
- Department of Surgery, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
| | - Zenaida Ceaușu
- Department of Pathology, Saint Pantelimon Emergency Clinical Hospital Bucharest, Bucharest 021659, Romania
| | - Mihail Ceauşu
- Department of Histopathology, Alexandru Trestioreanu National Institute of Oncology, Bucharest 022328, Romania
- Department of Histopathology, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020021, Romania
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Kızılgül M, Bayır Ö, Uçan B, Akhanlı P, Düğer H, Sencar ME, Kertmen H, Yılmazer D, Yazılıtaş D, Saylam G, Korkmaz MH, Çakal E. Metastatic diffuse follicular variant papillary thyroid cancer without cervical lymph node metastasis presenting with symptoms related to hypopituitarism. EINSTEIN-SAO PAULO 2023; 21:eRC0229. [PMID: 37493833 PMCID: PMC10356124 DOI: 10.31744/einstein_journal/2023rc0229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 04/04/2023] [Indexed: 07/27/2023] Open
Abstract
In this article, we present a case of diffuse follicular variant papillary thyroid carcinoma with pituitary metastasis, which is a rare cause of pituitary metastasis. The follicular variant of papillary thyroid carcinoma is an uncommon variant of papillary carcinoma. A 74-year-old male was presented with weakness, fatigue, and a decreased appetite. The patient was diagnosed with secondary adrenal and thyroid insufficiencies. Imaging revealed a pituitary mass with suprasellar extension, right cavernous sinus invasion, and optic chiasm compression. Thyroid ultrasonography revealed a nodule with a maximum size of 7.2cm in the right lobe. Cytological examination via fine-needle aspiration suggested papillary thyroid cancer. Total thyroidectomy with central and right lateral neck dissection confirmed the diagnosis of diffuse follicular variant of papillary thyroid carcinoma. Owing to visual field defects, the patient underwent transsphenoidal surgery. Histological and immunohistochemical evaluations confirmed pituitary metastasis from the papillary thyroid cancer. Radioactive iodine treatment and gamma knife radiotherapy of the pituitary gland were performed. The initiation of sorafenib treatment was deemed appropriate during the follow-up. A significant decrease in the thyroglobulin levels was observed after sorafenib treatment. Pituitary metastasis should be considered in patients diagnosed with hypopituitarism and pituitary lesions at initial evaluation. The presence of visual field defects may be an indication for neurosurgical intervention and guide both diagnosis and treatment. The management of papillary thyroid cancer and the role of treatment modalities in prognosis depend on the biological behavior of the tumor. Early diagnosis and multidisciplinary management are crucial for the treatment of these patients.
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Affiliation(s)
- Muhammed Kızılgül
- Department of Endocrinology and Metabolism, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Ömer Bayır
- Department of Otorhinolaryngology and Head & Neck Surgery, University of Health Science, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Bekir Uçan
- Department of Endocrinology and Metabolism, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Pınar Akhanlı
- Department of Endocrinology and Metabolism, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Hakan Düğer
- Department of Endocrinology and Metabolism, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Hayri Kertmen
- Department of Neurosurgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Demet Yılmazer
- Department of Pathology, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Doğan Yazılıtaş
- Department of Medical Oncology, University of Health Sciences, Dışkapı Yıldırım Beyazıt iskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Güleser Saylam
- Department of Otorhinolaryngology and Head & Neck Surgery, University of Health Science, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Mehmet Hakan Korkmaz
- Department of Otorhinolaryngology and Head & Neck Surgery, University of Health Science, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Erman Çakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
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Tazeoglu D, Dag A, Esmer AC, Benli S, Arslan B, Arpaci RB. Is it Possible to Diagnose "Non-Invasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features" Preoperatively? Indian J Surg Oncol 2023; 14:368-375. [PMID: 37324293 PMCID: PMC10267065 DOI: 10.1007/s13193-022-01696-3] [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: 04/06/2022] [Accepted: 12/22/2022] [Indexed: 01/01/2023] Open
Abstract
There is no accepted consensus or algorithm for the preoperative diagnosis of non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) in patients with thyroid nodules. In this study, we evaluated the importance of preoperative neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio in the differential diagnosis of NIFTP. Pathology preparations of 209 patients with a follicular variant of papillary thyroid carcinoma (FVPTC) diagnosed after thyroid surgery in a tertiary health center between January 2010 and January 2020 were re-evaluated. Patients were divided into NIFTP and encapsulated follicular variant papillary thyroid carcinoma (EFVPTC) to compare. Of the patients, 58 (27.7%) were NIFTP, and 151 (72.3%) were EFVPTC. There was no statistically significant difference in terms of age (p = 0.46), tumor size (p = 0.51), gender (p = 0.48), and surgical technique (p = 0.78) between the groups. The probability of the neutrophil-to-lymphocyte ratio (NLR) > 2 is more common in the EFVPTC group. It was statistically significant that the NIFTP group was 1.96 times more likely to have NLR > 2 (OR: 1.96, 95% CI: 1.06-3.63) (p < 0.05). However, there was no risk difference between the groups in terms of the platelet-to-lymphocyte ratio (PLR) (OR: 0.76, 95% CI: 0.41-1.43) (p > 0.05). The diagnosis of NIFTP should be kept in mind in the evaluation of patients whose thyroid fine-needle aspiration (FNA) biopsy results are in the intermediate group. NIFTP exhibits better prognostic findings than classic thyroid papillary cancer and EFVPTC. Therefore, preoperative diagnosis of NIFTP in line with laboratory, ultrasonography, and FNA findings will save the patient from unnecessary overtreatment.
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Affiliation(s)
- Deniz Tazeoglu
- Department of General Surgery, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Ahmet Dag
- Department of General Surgery, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Ahmet Cem Esmer
- Department of General Surgery, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Sami Benli
- Department of General Surgery, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Bilal Arslan
- Department of General Surgery, Faculty of Medicine, Mersin University, Mersin, Turkey
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Muacevic A, Adler JR, Sebeih H, Alessa MA, Alkaf HH, Bahaj A, Abdelmonim SK. Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclear Features: What a Surgeon Should Know. Cureus 2023; 15:e33649. [PMID: 36788866 PMCID: PMC9912993 DOI: 10.7759/cureus.33649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2023] [Indexed: 01/13/2023] Open
Abstract
The inclusion of the less aggressive follicular form of papillary thyroid cancer (PTC) is associated with an increase in the incidence of the condition, with the follicular variant of PTC being the most common of all variants. The majority of individuals with the encapsulated follicular variant of papillary thyroid carcinoma (EFVPTC) are treated as though they have classic thyroid cancer, despite the availability of mounting evidence to contradict the aforementioned. According to numerous research, a certain type of noninvasive-EFVPTC (NI-EFVPTC) demonstrated poor histopathologic diagnostic reproducibility and has received aggressive treatment similar to that of a classical thyroid neoplasm. Therefore, to replace the term NI-EFVPC, a new nomenclature for these tumors, called "noninvasive follicular thyroid neoplasm with papillary-like nuclear characteristics" (NIFTP), was introduced in the year 2016. The present paper explores this recently introduced terminology, clinical, histologic, and molecular features, and diagnostic criteria.
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Sharma AK, Jain K, Singhal P, Rawat DS, Jain SK, Sharma S. Encapsulated Follicular Variant of Papillary Thyroid Carcinoma: A review on Surgical Treatment. Indian J Otolaryngol Head Neck Surg 2022; 74:6384-6390. [PMID: 36742493 PMCID: PMC9895742 DOI: 10.1007/s12070-022-03107-z] [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: 09/10/2021] [Accepted: 11/18/2021] [Indexed: 02/07/2023] Open
Abstract
Differentiated thyroid carcinoma is one of the commonest malignancies in head and neck region. Among differentiated thyroid carcinoma, papillary carcinoma is the commonest. Encapsulated follicular variant of papillary thyroid carcinoma tumors are very indolent tumors which behave like benign tumors. Many tumors have been over diagnosed and over treated in spite of their indolent nature. We aimed to find out if total thyroidectomy is really required for very low grade tumors like encapsulated FVPTC. We operated 672 patients of thyroid disease during 2012 to 2020 in SMS Medical College, Jaipur. Out of 256 patients, 199 patients (78%) had papillary carcinoma of thyroid. Classical variant was present in 40% and follicular variant was present in 35% (N-69). Out of 69 patients with follicular variant of PTC, 59 patients had well encapsulated type of follicular variant of PTC while 10 patients had invasive type of follicular variant of PTC. Encapsulated FVPTC are less aggressive and indolent tumors. They should be treated more conservatively. Hemithyroidectomy is sufficient treatment for its complete cure. Out of 69 patients with Follicular variant of PTC, 59 patients had encapsulated disease. Out of 59 patients, 14 (24%) had bilateral nodular disease. 45 (77%) patients had unilateral disease; multicentric in one lobe in 9 (15%) patients and unicentric in 36 (61%) patients. However, encapsulated FVPTC was only found in predominant lobe and the non dominant lobe had benign disease.
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Affiliation(s)
- Anjani Kumar Sharma
- Department of Otorhinolaryngology, SMS Medical College, B-43, Krishnapuri, Old Ramgarh Mod, Jaipur, 302002 India
| | - Khushboo Jain
- Department of Otorhinolaryngology, SMS Medical College, B-43, Krishnapuri, Old Ramgarh Mod, Jaipur, 302002 India
| | - Pawan Singhal
- Department of Otorhinolaryngology, SMS Medical College, B-43, Krishnapuri, Old Ramgarh Mod, Jaipur, 302002 India
| | | | - Shailesh Kumar Jain
- Department of Otorhinolaryngology, SMS Medical College, B-43, Krishnapuri, Old Ramgarh Mod, Jaipur, 302002 India
| | - Shivam Sharma
- Department of Otorhinolaryngology, SMS Medical College, B-43, Krishnapuri, Old Ramgarh Mod, Jaipur, 302002 India
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Kim JY, Chang S, Kwon AY, Park EY, Kim TH, Choi S, Lee M, Oh YL. Core needle biopsy and ultrasonography are superior to fine needle aspiration in the management of follicular variant papillary thyroid carcinomas. Endocrine 2022; 75:437-446. [PMID: 34505274 DOI: 10.1007/s12020-021-02864-1] [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: 05/18/2021] [Accepted: 08/31/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE Follicular variant papillary thyroid carcinoma (FVPTC) is a problematic entity. FVPTCs are often misdiagnosed by the standard fine needle aspiration (FNA); in addition, FVPTCs represent a mixed group of tumors with two biologically distinct subtypes: The indolent encapsulated FVPTC and the aggressive infiltrative FVPTC. Recent changes in guidelines suggests that FVPTC management may be improved if subtypes can be determined preoperatively. Preoperative assays, FNA, core needle biopsy (CNB), and ultrasonography (US) were compared for their ability to identify and subtype FVPTCs to determine the most appropriate test to manage FVPTCs. METHODS The preoperative assays and clinicopathologic variables of 255 resected FVPTCs cases at Samsung Medical Center between 2012 and 2016 were retrospectively evaluated. RESULTS CNB had the overall best ability to manage FVPTCs with the highest rate of diagnosis indicating surgery, lowest rate of inconclusive results, high sensitivity (88.9%), specificity (87.7%), negative predictive value (97.0%), diagnostic odds ratio (DOR; 56.9), and excellent predictive ability (AUC 0.906) for differentiating FVPTC subtypes. US had a moderate DOR (12.8), good predictive ability (AUC 0.802), high sensitivity (75.0%) and specificity (81.0%). CNB and US both had significantly higher accuracy for discriminating FVPTC subtypes than FNA (AUC 0.908 and 0.877 > 0.671; p < 0.05). The excellent performance of CNB could be attributed to distinct histologic differences between FVPTC subtypes. CONCLUSION CNB and US had superior performance to FNA in the identification and subtyping of FVPTC. In institutions with skilled and experienced operators, CNB is the preferred method for evaluating possible FVPTC lesions.
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Affiliation(s)
- Ji-Ye Kim
- Department of Pathology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Republic of Korea
| | - Sunhee Chang
- Department of Pathology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Republic of Korea
| | - Ah-Young Kwon
- Department of Pathology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Eun Young Park
- Biostatistics Collaboration Team, Research Core Center, National Cancer Center, Goyang, Republic of Korea
| | - Tae Hyuk Kim
- Division of Endocrinology & Metabolism, Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sangjoon Choi
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Minju Lee
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Forensic Medicine Investigation Division, Seoul Institute National Forensic Service, Seoul, Republic of Korea
| | - Young Lyun Oh
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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Mohorea I, Terzea D, Mihalache D, Socea B, Şerban D, Ceausu M. Cytomorphological study of thyroid carcinoma. Exp Ther Med 2022; 23:117. [PMID: 34970340 PMCID: PMC8713177 DOI: 10.3892/etm.2021.11040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/05/2021] [Indexed: 11/06/2022] Open
Abstract
The most common neoplasm of the endocrine system is found in the thyroid gland with a significant increase in recent decades largely due to modern diagnostic methods. Thyroid tumors generally have a favorable evolution, but there are also aggressive variants with a poor prognosis. In these aggressive tumors, the most reliable method of detecting and making a differential diagnosis is represented by ultrasound-guided fine-needle cytopuncture, confirmed by histopathological examination. Although fine-needle aspiration puncture and cytological examination are considered to have a high sensitivity and specificity, diagnostic certainty is established later only by histopathological examination. Fine-needle aspiration cytopuncture of the thyroid gland correlated with histopathological examination has played a crucial role in recognizing and identifying variants of papillary carcinoma known to have aggressive biological behavior, especially in cases of poorly differentiated carcinoma. Recognition of aggressive variants of papillary carcinoma is of major importance in the prognosis and clinical management of patients. The aim of this study was to present the correlations found in a series of thyroid tumors from patients treated in surgery and oncology departments, as well as tumors accidentally detected during autopsies in the department of forensics. All the cases selected in the study benefited from a complex histopathological diagnosis adapted to each case in order to ensure maximum efficiency.
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Affiliation(s)
- Iuliana Mohorea
- Department of Pathology, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Pathology, Braila Emergency County Hospital, 810325 Braila, Romania
| | - Dana Terzea
- Department of Pathology, 'C.I. Parhon' Clinical Hospital for Endocrine Diseases, 011863 Bucharest, Romania
| | - Daniela Mihalache
- Department of Pathology, Braila Emergency County Hospital, 810325 Braila, Romania.,Department of Pathology, Faculty of Medicine and Pharmacy, 'Dunarea de Jos' University of Galati, 800008 Galati, Romania
| | - Bogdan Socea
- Department of Surgery, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Surgery, 'Sf. Pantelimon' Emergency Clinical Hospital, 021659 Bucharest, Romania
| | - Dragoş Şerban
- Department of Surgery, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania.,Department of Surgery, University Emergency Hospital, 050098 Bucharest, Romania
| | - Mihai Ceausu
- Department of Pathology, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania
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Al-Maghrabi H, Tashkandi M, Khayyat W, Alghamdi A, Alsalmi M, Alzahrani A, Al-Hakami H, Alqarni M. Non-invasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features (NIFTP) lowers the risk of malignancy in the bethesda system for reporting thyroid cytopathology diagnostic categories. SAUDI JOURNAL OF MEDICINE AND MEDICAL SCIENCES 2022; 10:105-110. [PMID: 35602399 PMCID: PMC9121695 DOI: 10.4103/sjmms.sjmms_202_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 12/25/2021] [Accepted: 03/17/2022] [Indexed: 11/25/2022] Open
Abstract
Background: The introduction of non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) has been shown to decrease the risk of malignancy (ROM) in The Bethesda System for Reporting Thyroid Cytopathology. This knowledge may alter the management of patients with thyroid nodules. Objectives: To correlate cytological diagnosis with histological diagnosis for establishing the ROM of all Bethesda system categories after the introduction of NIFTP. Methods: This was a retrospective cohort study. All consecutive fine-needle aspiration cytology (FNAC) specimens collected from January 1, 2013, to December 31, 2017, at King Abdullah Medical City, Jeddah, Saudi Arabia, were assessed, and patients who underwent surgical excision of thyroid nodules were further analyzed. The ROM and overall ROM for each Bethesda category were calculated with and without considering NIFTP as a malignant tumor. Results: Overall, 1066 FNAC specimens were collected, of which 281 had a surgical correlation. Our cases included 18 (6.4%) non-diagnostic (ND), 109 (38.8%) benign, 28 (9.9%) atypia/follicular lesion of undetermined significance (AUS/FLUS), 39 (13.8%) follicular neoplasm or suspicion for follicular neoplasm (FN/SFN), 20 (7.1%) suspicion for malignancy (SM), and 67 (23.8%) malignant (POM) cases. After considering NIFTP diagnosis on resection specimens, the ROM decreased as follows: ND, 38.8% to 27.7% (P = 0.2388); benign, 21.1% to 11.9% (P = 0.0343); AUS/FLUS, 50% to 39.2% (P = 0.2089); FN/SFN, 53.8% to 33.3% (P = 0.0336); SM, 85% to 75% (P = 0.2147); POM, 95.5% to 88% (P = 0.0582). Conclusion: The introduction of NIFTP would significantly decrease the ROM of thyroid FNAC in both benign and FN/SFN categories of the Bethesda system.
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Giani C, Torregrossa L, Ramone T, Romei C, Matrone A, Molinaro E, Agate L, Materazzi G, Piaggi P, Ugolini C, Basolo F, Ciampi R, Elisei R. Whole Tumor Capsule Is Prognostic of Very Good Outcome in the Classical Variant of Papillary Thyroid Cancer. J Clin Endocrinol Metab 2021; 106:e4072-e4083. [PMID: 34231847 DOI: 10.1210/clinem/dgab396] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Tumor capsule integrity is becoming a relevant issue to predict the biological behavior of human tumors, including thyroid cancer. OBJECTIVE This work aims to verify whether a whole tumor capsule in the classical variant of papillary thyroid carcinoma (CVPTC) could have as a predictive role of a good outcome as for follicular variant (FVPTC). METHODS FVPTC (n = 600) and CVPTC (n = 554) cases were analyzed. We distinguished between encapsulated-FVPTC (E-FVPTC) and encapsulated-CVPTC (E-CVPTC) and, thereafter, invasive (Ei-FVPTC and Ei-CVPTC) and noninvasive (En-FVPTC and En-CVPTC) tumors, according to the invasion or integrity of the tumor capsule, respectively. Cases without a tumor capsule were indicated as invasive-FVPTC (I-FVPTC) and invasive-CVPTC (I-CVPTC). The subgroup of each variant was evaluated for BRAF mutations. RESULTS E-FVPTC was more frequent than E-CVPTC (P < .001). No differences were found between En-FVPTC and En-CVPTC or between Ei-FVPTC and Ei-CVPTC. After 18 years of follow-up, a greater number of not-cured cases were observed in Ei-CVPTC with respect to Ei-FVPTC, but not in En-CVPTC to En-FVPTC. Multivariate clustering analysis showed that En-FVPTC, En-CVPTC, and Ei-FVPTC have similar features but different from I-FVPTC and I-CVPTC and, to a lesser extent, from Ei-CVPTC. A total of 177 of 614 (28.8%) cases were BRAFV600E mutated, and 10 of 614 (1.6%) carried BRAF-rare alterations. A significantly higher rate of En-CVPTC (22/49, 44.9%) than En-FVPTC (15/195, 7.7%) (P < .0001) were BRAFV600E mutated. CONCLUSION En-CVPTC is less prevalent than En-FVPTC. However, it has good clinical/ pathological behavior comparable to En-FVPTC. This finding confirms the good prognostic role of a whole tumor capsule in CVPTC as well. New nomenclature for En-CVPTC, similar to that introduced for En-FVPTC (ie, noninvasive follicular thyroid neoplasm with papillary-like nuclear features; NIFTP) could be envisaged.
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Affiliation(s)
- Carlotta Giani
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Liborio Torregrossa
- Department of Surgical, Medical, Molecular Pathology and Critical Area, Pathology Unit, University Hospital of Pisa, Pisa, Italy
| | - Teresa Ramone
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Cristina Romei
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Antonio Matrone
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Eleonora Molinaro
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Laura Agate
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Gabriele Materazzi
- Department of Surgical, Medical, Molecular Pathology and Critical Area, Surgery Unit, University Hospital of Pisa, Pisa, Italy
| | - Paolo Piaggi
- Department of Information Engineering, University of Pisa, Pisa, Italy
| | - Clara Ugolini
- Department of Surgical, Medical, Molecular Pathology and Critical Area, Pathology Unit, University Hospital of Pisa, Pisa, Italy
| | - Fulvio Basolo
- Department of Surgical, Medical, Molecular Pathology and Critical Area, Pathology Unit, University Hospital of Pisa, Pisa, Italy
| | - Raffaele Ciampi
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Rossella Elisei
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University Hospital of Pisa, Pisa, Italy
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Akbulut D, Kuz ED, Kursun N, Dizbay Sak S. Capsular Invasion Matters Also in "Papillary Patterned" Tumors: A Study on 121 Cases of Encapsulated Conventional Variant of Papillary Thyroid Carcinoma. Endocr Pathol 2021; 32:357-367. [PMID: 33398670 DOI: 10.1007/s12022-020-09650-1] [Citation(s) in RCA: 6] [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] [Accepted: 09/16/2020] [Indexed: 01/17/2023]
Abstract
Papillary thyroid carcinoma (PTC) is the most common type of thyroid malignancy. Some PTCs with classical papillae can be totally or partially encapsulated, and these tumors are called "encapsulated" (conventional) variant of papillary thyroid carcinoma. We aimed to investigate the clinicopathological features of this variant, comparing with non-encapsulated conventional type PTC. Among 823 thyroidectomy specimens with PTC diagnosed between 2015 and 2018, 121 tumors from 105 patients (12.75%) were reclassified as encapsulated conventional PTC. In 76 patients, tumors were unifocal. Size, cystic changes, background thyroiditis, psammoma bodies, cervical lymph node metastasis at presentation, capsular/vascular invasion, and immunohistochemical BRAF-V600E expression were evaluated. Ninety-two non-encapsulated conventional PTCs served as control group. Encapsulated cases were predominantly women (73.3%), 56.4% were microcarcinomas, 97.5% had cystic changes, 81.4% were BRAF-V600E positive, and 36.8% of unifocal encapsulated tumors had cervical lymph node metastasis. Thyroiditis and psammoma bodies were detected in nearly half of the encapsulated PTCs. Fourteen percent of the unifocal tumors showed total encapsulation, whereas capsular and vascular invasion was detected in 85.5% and 5.8%, respectively. Encapsulated cases did not show any significant difference from the control group, except for prominent cystic changes (p < 0.001). Relationship between lymph node metastasis at presentation and capsular invasion was statistically significant (p = 0.001), and metastasis was more frequent in cases with extensive capsular invasion (no/minimal invasion versus extensive invasion, p < 0.001). Cystic changes are very common, and this feature deserves mentioning as a morphological characteristic of encapsulated conventional PTCs. As in encapsulated "follicular" variant of PTC, capsular invasion status is important in evaluating papillary patterned encapsulated PTC for predicting lymph node metastasis. Total examination of the tumor capsule and inclusion of capsular invasion status in pathology reports are recommended.
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Affiliation(s)
- Dilara Akbulut
- Department of Pathology, Ankara University Medical School, Ahmet Adnan Saygun Street No: 35 Sihhiye, 06230, Ankara, Turkey
| | - Ezgi Dicle Kuz
- Department of Pathology, Ankara University Medical School, Ahmet Adnan Saygun Street No: 35 Sihhiye, 06230, Ankara, Turkey
| | - Nazmiye Kursun
- Department of Biostatistics, Ankara University Medical School, Ahmet Adnan Saygun Street No: 35 Sihhiye, 06230, Ankara, Turkey
| | - Serpil Dizbay Sak
- Department of Pathology, Ankara University Medical School, Ahmet Adnan Saygun Street No: 35 Sihhiye, 06230, Ankara, Turkey.
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Marotta V, Bifulco M, Vitale M. Significance of RAS Mutations in Thyroid Benign Nodules and Non-Medullary Thyroid Cancer. Cancers (Basel) 2021; 13:cancers13153785. [PMID: 34359686 PMCID: PMC8345070 DOI: 10.3390/cancers13153785] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Only about 4% of thyroid nodules are carcinomas and require surgery. Fine-needle aspiration cytology is the most accurate tool to distinguish benign from malignant thyroid nodules, however it yields an indeterminate result in about 30% of the cases, posing diagnostic and prognostic dilemmas. Testing for genetic mutations, including those of RAS, has been proposed for indeterminate cytology to solve these dilemmas and support the clinician decision making process. A passionate debate is ongoing on the biological and clinical significance of RAS mutations, calling into question the utility of RAS as tumor marker. Recently, the description of a new entity of non-invasive follicular thyroid neoplasm and the accurate review of more recent analyses demonstrate that RAS mutations have limited utility in both the diagnostic and prognostic setting of thyroid nodular disease. Abstract Thyroid nodules are detected in up to 60% of people by ultrasound examination. Most of them are benign nodules requiring only follow up, while about 4% are carcinomas and require surgery. Malignant nodules can be diagnosed by the fine-needle aspiration cytology (FNAC), which however yields an indeterminate result in about 30% of the cases. Testing for RAS mutations has been proposed to refine indeterminate cytology. However, the new entity of non-invasive follicular thyroid neoplasm, considered as having a benign evolution and frequently carrying RAS mutations, is expected to lower the specificity of this mutation. The aggressive behavior of thyroid cancer with RAS mutations, initially reported, has been overturned by the recent finding of the cooperative role of TERT mutations. Although some animal models support the carcinogenic role of RAS mutations in the thyroid, evidence that adenomas harboring these mutations evolve in carcinomas is lacking. Their poor specificity and sensitivity make the clinical impact of RAS mutations on the management of thyroid nodules with indeterminate cytology unsatisfactory. Evidence suggests that RAS mutation-positive benign nodules demand a conservative treatment. To have a clinical impact, RAS mutations in thyroid malignancies need not to be considered alone but rather together with other genetic abnormalities in a more general context.
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Affiliation(s)
- Vincenzo Marotta
- UOC Clinica Endocrinologica e Diabetologica, AOU S. Giovanni di Dio e Ruggi D’Aragona, 84131 Salerno, Italy;
| | - Maurizio Bifulco
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80100 Naples, Italy;
| | - Mario Vitale
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081 Baronissi, Italy
- Correspondence: ; Tel.: +39-089-672-753
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Fang H, Si Y, Wang C, Gong Q, Liu C, Wang S. Diffuse intrathyroidal dissemination of papillary thyroid carcinoma with no stromal fibrosis at presentation: A pattern of aggressive differentiated thyroid carcinoma. Pathol Res Pract 2021; 224:153510. [PMID: 34329840 DOI: 10.1016/j.prp.2021.153510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 06/02/2021] [Accepted: 06/02/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Multifocal Papillary thyroid carcinoma (PTC) is a very common condition. In certain cases, it is possible to find tens to hundreds of foci with a diffuse intrathyroidal spread in the whole thyroid with no stromal fibrosis. Herein, PTC with such features was nominated as diffuse disseminate variant (DDV) PTC. The aim of the present study was to investigate the histopathological characteristics, molecular features, and biological behavior of DDV and compare the characteristics of DDV to diffuse sclerosing variant (DSV) PTC. MATERIALS AND METHODS Thirty-four DDV and 23 DSV cases were identified from consecutive surgical specimens diagnosed with PTC between 2014 and 2019. Targeted next-generation sequencing (NGS) was applied to investigate the mutation spectrum of DDV and DSV. RESULTS DDV was commonly diagnosed in young patients and exhibited high rates of LNM (100 %), ETE (61.8 %), and LVI (44.1 %); however, they did not differ from DSV (P > 0.05). Male patients were more frequently diagnosed with DDV than with DSV (P < 0.001). The size of the largest tumor was significantly greater in DDV than in DSV patients (P = 0.008). In addition, BRAFV600E mutation was significantly higher in the DDV than in the DSV group (P < 0.001). The RET/PTC rearrangement was more frequent in DSV than in DDV patients; however, the difference was not statistically significant (P = 0.106). Moreover, DDV had a higher rate of recurrence compared to DSV treated with the same protocol (total thyroidectomy followed by radioactive iodine (RAI) treatment) (47.1 % and 8.7 %, P = 0.002). CONCLUSIONS DDV should be regarded as a novel aggressive variant of PTC with distinct clinicopathological characteristics, aggressive biological behaviors, and a high recurrence.
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Affiliation(s)
- Haisheng Fang
- Department of Pathology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yan Si
- Department of General Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Cong Wang
- Department of Pathology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Qixing Gong
- Department of Pathology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Chong Liu
- Department of Pathology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Shui Wang
- Department of General Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, 210029, China.
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Diagnostic Value of Galectin-3 in Distinguishing Invasive Encapsulated Carcinoma from Noninvasive Follicular Thyroid Neoplasms with Papillary-Like Nuclear Features (NIFTP). Cancers (Basel) 2021; 13:cancers13122988. [PMID: 34203725 PMCID: PMC8232163 DOI: 10.3390/cancers13122988] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 01/21/2023] Open
Abstract
Simple Summary The reclassification of NIFTP raised the need for rebuilding the clinical, histologic, cytological and molecular parameters, including re-evaluation of the previously examined biomarkers, for assisting in the diagnosis of this subset of indolent noninvasive tumors from invasive encapsulated follicular variant of papillary thyroid carcinoma (EFVPTC). In this retrospective study, Galectin-3 (Gal-3) IHC staining on patient’s thyroid tissues showed a statistically significant higher cytoplasmic Gal-3 expression in invasive EFVPTC than in NIFTP and other benign subgroups. Our findings refined the diagnostic value of Gal-3 expression as an ancillary marker in identifying NIFTP among encapsulated follicular variant nodules. Abstract Background: non-invasive follicular thyroid neoplasms with papillary-like nuclear features (NIFTP), which is considered as low-risk cancer, should be distinguished from the malignant invasive encapsulated follicular variant of papillary thyroid carcinoma (EFVPTC). Improved discrimination of NIFTPs from invasive EFVPTCs using a molecular biomarker test could provide useful insights into pre- and post-surgical management of the indeterminate thyroid nodule. Galectin-3 (Gal-3), a β-galactosyl-binding molecule in the lectin group, is involved in different biological functions in well differentiated thyroid carcinomas. The aim of this study was to determine whether Gal-3 expression as a diagnostic marker could distinguish indolent NIFTP from invasive EFVPTC on tissue specimens from surgical thyroid nodules. Methods: immunohistochemical (IHC) analysis of cytoplasmic and nuclear Gal-3 expression was performed in formalin-fixed paraffin-embedded (FFPE) surgical tissues in four specific diagnostic subgroups- benign nodules, NIFTPs, EFVPTCs and lymphocytic/Hashimoto’s thyroiditis (LTs). Results: cytoplasmic Gal-3 expression (mean ± SD) was significantly increased in invasive EFVPTCs (4.80 ± 1.60) compared to NIFTPs (2.75 ± 1.58, p < 0.001) and benign neoplasms (2.09 ± 1.19, p < 0.001) with no significant difference between NIFTPs and benign lesions (p = 0.064). The presence of LT enhanced cytoplasmic Gal-3 expression (3.80 ± 1.32) compared to NIFTPs (p = 0.016) and benign nodules (p < 0.001). Nuclear Gal-3 expression in invasive EFVPTCs (1.84 ± 1.30) was significantly higher than in NIFTPs (1.00 ± 0.72, p = 0.001), but similar to benign nodules (1.44 ± 1.77, p = 0.215), thereby obviating its potential clinical application. Conclusions: our observations have indicated that increased cytoplasmic Gal-3 expression shows diagnostic potential in distinguishing NIFTP among encapsulated follicular variant nodules thereby serving as a possible ancillary test to H&E histopathological diagnostic criteria when LT interference is absent, to assist in the detection of the invasive EFVPTC among such nodules.
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16
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Dolezal JM, Trzcinska A, Liao CY, Kochanny S, Blair E, Agrawal N, Keutgen XM, Angelos P, Cipriani NA, Pearson AT. Deep learning prediction of BRAF-RAS gene expression signature identifies noninvasive follicular thyroid neoplasms with papillary-like nuclear features. Mod Pathol 2021; 34:862-874. [PMID: 33299111 PMCID: PMC8064913 DOI: 10.1038/s41379-020-00724-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/28/2020] [Accepted: 11/11/2020] [Indexed: 12/14/2022]
Abstract
Noninvasive follicular thyroid neoplasms with papillary-like nuclear features (NIFTP) are follicular-patterned thyroid neoplasms defined by nuclear atypia and indolent behavior. They harbor RAS mutations, rather than BRAFV600E mutations as is observed in papillary thyroid carcinomas with extensive follicular growth. Reliably identifying NIFTPs aids in safe therapy de-escalation, but has proven to be challenging due to interobserver variability and morphologic heterogeneity. The genomic scoring system BRS (BRAF-RAS score) was developed to quantify the extent to which a tumor's expression profile resembles a BRAFV600E or RAS-mutant neoplasm. We proposed that deep learning prediction of BRS could differentiate NIFTP from other follicular-patterned neoplasms. A deep learning model was trained on slides from a dataset of 115 thyroid neoplasms to predict tumor subtype (NIFTP, PTC-EFG, or classic PTC), and was used to generate predictions for 497 thyroid neoplasms within The Cancer Genome Atlas (TCGA). Within follicular-patterned neoplasms, tumors with positive BRS (RAS-like) were 8.5 times as likely to carry an NIFTP prediction than tumors with negative BRS (89.7% vs 10.5%, P < 0.0001). To test the hypothesis that BRS may serve as a surrogate for biological processes that determine tumor subtype, a separate model was trained on TCGA slides to predict BRS as a linear outcome. This model performed well in cross-validation on the training set (R2 = 0.67, dichotomized AUC = 0.94). In our internal cohort, NIFTPs were near universally predicted to have RAS-like BRS; as a sole discriminator of NIFTP status, predicted BRS performed with an AUC of 0.99 globally and 0.97 when restricted to follicular-patterned neoplasms. BRAFV600E-mutant PTC-EFG had BRAFV600E-like predicted BRS (mean -0.49), nonmutant PTC-EFG had more intermediate predicted BRS (mean -0.17), and NIFTP had RAS-like BRS (mean 0.35; P < 0.0001). In summary, histologic features associated with the BRAF-RAS gene expression spectrum are detectable by deep learning and can aid in distinguishing indolent NIFTP from PTCs.
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Affiliation(s)
- James M Dolezal
- Department of Medicine, Section of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL, USA
| | - Anna Trzcinska
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA
| | - Chih-Yi Liao
- Department of Medicine, Section of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL, USA
| | - Sara Kochanny
- Department of Medicine, Section of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL, USA
| | - Elizabeth Blair
- Department of Surgery, University of Chicago Medical Center, Chicago, IL, USA
| | - Nishant Agrawal
- Department of Surgery, University of Chicago Medical Center, Chicago, IL, USA
| | - Xavier M Keutgen
- Department of Surgery, University of Chicago Medical Center, Chicago, IL, USA
| | - Peter Angelos
- Department of Surgery, University of Chicago Medical Center, Chicago, IL, USA
| | - Nicole A Cipriani
- Department of Pathology, University of Chicago Medical Center, Chicago, IL, USA.
| | - Alexander T Pearson
- Department of Medicine, Section of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL, USA.
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Wang X, Zheng X, Zhu J, Li Z, Wei T. Radioactive iodine therapy may not improve disease-specific survival in follicular variant papillary thyroid cancer without distant metastasis: A propensity score-matched analysis. Head Neck 2021; 43:1730-1738. [PMID: 33559196 PMCID: PMC8248087 DOI: 10.1002/hed.26637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/20/2020] [Accepted: 01/21/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Whether radioactive iodine (RAI) therapy is effective in improving disease-specific survival (DSS) in patients with follicular variant papillary thyroid cancer (FVPTC) without distant metastasis remains unclear. METHODS Patients with FVPTC were identified from the Surveillance, Epidemiology, and End Results (SEER) database between 2004 and 2015. The Kaplan-Meier method and the Cox proportional hazards regression model were used to evaluate DSS. Propensity score-matched analysis was performed to reduce the influence of confounding bias. RESULTS RAI did not improve DSS, even in patients with aggressive features such as T4 classification (p = 0.658), extrathyroidal extension (p = 0.083), lateral lymph node metastasis (p = 0.544), and ≥5 metastatic lymph nodes (p = 0.599). CONCLUSION RAI did not affect DSS in patients with FVPTC without distant metastases in this SEER database study. Multicenter, prospective studies including recurrence and molecular information should be conducted to comprehensively evaluate the effects of RAI on FVPTC.
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Affiliation(s)
- Xiaofei Wang
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xun Zheng
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jingqiang Zhu
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zhihui Li
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Wei
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, China
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18
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Jang E, Kim K, Jung CK, Bae JS, Kim JS. Clinicopathological parameters for predicting non-invasive follicular thyroid neoplasm with papillary features (NIFTP). Ther Adv Endocrinol Metab 2021; 12:20420188211000500. [PMID: 33912339 PMCID: PMC8047967 DOI: 10.1177/20420188211000500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 02/12/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Criteria for the preoperative diagnosis of non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) have not yet been confirmed. This study aimed to analyze differences in clinicopathological characteristics between follicular variant of papillary thyroid carcinoma (FVPTC) subtypes to determine which parameters are relevant in differentiating NIFTP from other variants. METHODS We retrospectively analyzed the records of 199 patients with a preoperative diagnosis of FVPTC who underwent thyroid surgery at Seoul St. Mary's Hospital (Seoul, Korea) from 2011 to 2015. Clinicopathological features were analyzed retrospectively via a complete review of medical charts and pathology reports of patients. RESULTS The NIFTP and invasive encapsulated FVPTC (EFVPTC) groups showed relatively benign features, with a majority of the patients categorized as Bethesda category III (25.8% and 25.6%, respectively) or IV (34.8% and 30.2%, respectively), while the infiltrative FVPTC group showed more malignant features, with more patients categorized as category V (28.6%) or VI (47.6%) (p < 0.001). BRAF V600E mutations were significantly less prevalent in the NIFTP group (0%) and invasive EFVPTC group (4.7%) compared with the infiltrative FVPTC group (34.9%) (p < 0.001). Multivariate analysis showed that absence of BRAF V600E mutation (OR 20.311, p = 0.004) and lymph node metastasis (odds ratio 10.237, p = 0.004) were significantly associated with NIFTP. CONCLUSION Although Bethesda category was a statistically significant factor in distinguishing FVPTC subtypes, it was not effective in conclusively distinguishing NIFTP and invasive EFVPTC. Absence of BRAF V600E mutation and lymph node metastasis are important features in distinguishing NIFTP from other subtypes.
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Affiliation(s)
- Eunju Jang
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kwangsoon Kim
- Department of Surgery, College of Medicine, The Catholic University of Korea, 222 Banpodaero, Seoul, 06591, Korea
| | - Chan Kwon Jung
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ja Seong Bae
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Zhu Y, Ren W, Song Y, Fan Z, Wang Q, Jin H, Guo Y, Bai Y. Cytomorphologic features as predictors of aggressiveness in patients with pT1 papillary thyroid carcinoma: a retrospective study of associations with clinicopathological parameters in 226 fine-needle aspirates. Gland Surg 2021; 10:319-327. [PMID: 33633988 DOI: 10.21037/gs-20-618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Distinguishing aggressive pT1 papillary thyroid carcinomas (PTCs) from indolent PTCs before or during surgery is important. To the best of our knowledge, few reports in the literature have examined the value of the cytomorphologic features of PTC as predictors of aggressiveness. Methods This retrospective study included 226 pT1 PTC patients who underwent preoperative fine-needle aspiration cytology (FNAC) and surgery at Peking University Cancer Hospital between January 2018 and December 2019. Data on the clinical characteristics and pathological results were obtained from the electronic medical record database. All FNAC smears were blindly reviewed by two independent cytopathologists, and the associations between nine cytomorphologic features (lymphocytes, multinucleated giant cells, cellularity, cellular adhesiveness, nuclear size, nuclear pleomorphism, nuclear membrane regularity, intranuclear pseudoinclusions and the amount of cytoplasm) and clinicopathological parameters were statistically analyzed. Results Univariate analysis showed that cellularity, intranuclear pseudoinclusions, cellular adhesiveness, nuclear size, and nuclear pleomorphism were strong predictors of some clinicopathological parameters such as extracapsular invasion (ECI) and lymph node metastasis (LNM). Multivariate analysis confirmed that cellular adhesiveness was a strong independent predictor of ECI (P=0.001) and LNM (P<0.001), and the amount of cytoplasm can also predict LNM (P=0.024). Conclusions Cytomorphologic features including cellular adhesiveness and the amount of cytoplasm in preoperative FNAC smears could be a valuable tool for predicting ECI or LNM and may be predictors of aggressiveness in patients with pT1 PTC.
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Affiliation(s)
- Yanli Zhu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Wenhao Ren
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yuntao Song
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Head and Neck Surgery, Peking University Cancer Hospital and Institute, Beijing, China
| | - Zhihui Fan
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Ultrasound, Peking University Cancer Hospital and Institute, Beijing, China
| | - Qian Wang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Haizhu Jin
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yiyi Guo
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yanhua Bai
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
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Zurikat RO, Khader M, Azzam MI, Zahid ZM, Daoud SF, Nusirat SF, Albsoul N, Al-Natsheh MA, Al-Abbadi MA. Noninvasive follicular neoplasm with papillary-like nuclear features (NIFTP): a 13-year retrospective review at Jordan University Hospital. Endocrine 2020; 69:339-346. [PMID: 32319013 DOI: 10.1007/s12020-020-02299-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/30/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Noninvasive follicular neoplasm with papillary-like nuclear features (NIFTP) is the term to describe what was previously known as encapsulated follicular variant of papillary thyroid carcinoma. This new paradigm shift was agreed upon by experts in the field. The objective of this study is to evaluate cases previously diagnosed as follicular adenomas, follicular variant of papillary thyroid carcinoma and hyperplastic nodules to be reclassified as NIFTP according to the new criteria. Furthermore, the clinical follow-up of these NIFTP cases is evaluated. METHODS This retrospective study reviewed potential NIFTP cases over the last 13 years, at Jordan University Hospital. RESULTS A total of 811 thyroid surgery reports were identified and revised to identify the potential NIFTP cases. The review yielded 173 cases identified as potential NIFTP cases. Further pathological slide review resulted in a revised diagnosis of 32 cases of NIFTP according to the new criteria. The NIFTP cases comprised 4% of the total number of thyroidectomy cases and 16.1% of the total pool of previously diagnosed papillary thyroid carcinoma cases at our institution. While 111 cases retained their original diagnosis. Follow-up showed that all patients are alive and well with no evidence of disease. CONCLUSION Patients with NIFTP are not uncommon and the diagnosis is made only after a thorough evaluation of excision. Therefore, initial conservative management of solitary thyroid nodules suspicious for NIFTP in the form of lobectomy is recommended to avoid unnecessary total thyroidectomies. Our follow-up of NIFTP cases is similar to all previous reports.
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Affiliation(s)
- Rajai O Zurikat
- School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan
| | - Majd Khader
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan
| | - Muayad I Azzam
- School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan
| | - Zaid M Zahid
- School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan
| | - Samer F Daoud
- School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan
| | - Salam F Nusirat
- School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan
| | - Nader Albsoul
- Department of General Surgery, School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan
| | - Motaz A Al-Natsheh
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan
| | - Mousa A Al-Abbadi
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, University of Jordan, Queen Rania Street, Jubaiha, Amman, Jordan.
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21
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Linhares SM, Whitfield BW, Lee AF, Gordillo D, Picado O, Jeraq M, Farrá JC, Lew JI. Impact of Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclear Features on Revised Bethesda System Malignancy Rates at a Single Institution. J Surg Res 2020; 255:152-157. [PMID: 32563006 DOI: 10.1016/j.jss.2020.05.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/15/2020] [Accepted: 05/03/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The Bethesda System for Reporting Thyroid Cytopathology (BSRTC) standardizes thyroid cytopathology reporting in six tier diagnostic categories. In recent years, noninvasive encapsulated follicular variant of papillary thyroid carcinoma was reclassified as noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). This study examines the impact of NIFTP on the BSRTC risk of malignancy (ROM). METHODS This was a retrospective review of prospectively collected data from 565 patients who underwent fine needle aspiration and thyroidectomy at a single institution. ROM for each Bethesda category was analyzed and calculated with NIFTP classified as a malignant and nonmalignant lesion. Absolute and relative differences between ROM were compared. RESULTS Of 565 patients, 19 were Bethesda I, 159 were Bethesda II, 178 were Bethesda III, 46 were Bethesda IV, 42 were Bethesda V, and 121 were Bethesda VI. ROM differences with NIFTP classified as malignant versus nonmalignant for each class were as follows: Bethesda I, no change; Bethesda II, 18%-14%; Bethesda III, 55%-48%; Bethesda IV, 50%-35%; Bethesda V, 93%-91%; and Bethesda VI, 99%-98%. Absolute ROM differences for each category were as follows: Bethesda I, 0%; Bethesda II, 4%; Bethesda III, 7%; Bethesda IV, 15%; Bethesda V, 2%; and Bethesda VI, 1%. CONCLUSIONS A decreasing trend in absolute and relative ROM was seen in Bethesda II, III, and IV categories; however, exclusion of NIFTP as a malignant lesion did not significantly alter the ROM of BSRTC categories. Surgeons should assess their respective institution's experiences with NIFTP and the BSRTC.
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Affiliation(s)
- Samantha M Linhares
- Division of Endocrine Surgery, Department of Surgery, DeWitt Daughtry Family, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida.
| | - Bryan W Whitfield
- Division of Endocrine Surgery, Department of Surgery, DeWitt Daughtry Family, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - Amy F Lee
- Division of Endocrine Surgery, Department of Surgery, DeWitt Daughtry Family, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - Daniela Gordillo
- Division of Endocrine Surgery, Department of Surgery, DeWitt Daughtry Family, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - Omar Picado
- Division of Endocrine Surgery, Department of Surgery, DeWitt Daughtry Family, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - Mohammed Jeraq
- Division of Endocrine Surgery, Department of Surgery, DeWitt Daughtry Family, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - Josefina C Farrá
- Division of Endocrine Surgery, Department of Surgery, DeWitt Daughtry Family, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - John I Lew
- Division of Endocrine Surgery, Department of Surgery, DeWitt Daughtry Family, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
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22
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Chu YH, Sadow PM. Noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP): Diagnostic updates and molecular advances. Semin Diagn Pathol 2020; 37:213-218. [PMID: 32646613 DOI: 10.1053/j.semdp.2020.06.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 05/31/2020] [Accepted: 06/08/2020] [Indexed: 12/30/2022]
Abstract
The noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) is a strictly defined thyroid lesion, reclassified in 2016, in order to more accurately reflect the biological behavior of the tumor and thus, modify the way the lesion is clinically approached and perceived both by practitioners and patients. Additionally, this newly specified designation also allows for more uniformity in reporting for general pathologists less comfortable to exclude overt malignancy with certain nuclear features. In recent years, increasing molecular analyses correlated with longitudinal clinical outcomes have fostered improved diagnostic and treatment paradigms. Important revisions made to the definition of NIFTP in 2018 include the prohibition of any true papillae formation and the exclusion of lesions harboring the BRAF V600E mutation and other high-risk genetic abnormalities. These changes reflect the imperfection of the current criteria in outcome prediction and the global efforts for improvement. NIFTP are lesions with a wide range of size and cytomorphology. Although not addressed in the original series, large (≥4 cm) and oncocytic NIFTP have recently been shown to incur no recurrence or metastatic risk. Molecularly, NIFTP have a similar mutational profile as other follicular thyroid neoplasms, with frequent RAS family mutations and PAX8-PPARɤ fusions. However, the transcriptomic landscape is highly heterogenous, adding difficulty to gene expression-based cytopathologic classification. This review summarizes the evolution of the NIFTP concept and important advances in recent literature.
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Affiliation(s)
- Ying-Hsia Chu
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Peter M Sadow
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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23
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The American Association of Endocrine Surgeons Guidelines for the Definitive Surgical Management of Thyroid Disease in Adults. Ann Surg 2020; 271:e21-e93. [PMID: 32079830 DOI: 10.1097/sla.0000000000003580] [Citation(s) in RCA: 236] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To develop evidence-based recommendations for safe, effective, and appropriate thyroidectomy. BACKGROUND Surgical management of thyroid disease has evolved considerably over several decades leading to variability in rendered care. Over 100,000 thyroid operations are performed annually in the US. METHODS The medical literature from 1/1/1985 to 11/9/2018 was reviewed by a panel of 19 experts in thyroid disorders representing multiple disciplines. The authors used the best available evidence to construct surgical management recommendations. Levels of evidence were determined using the American College of Physicians grading system, and management recommendations were discussed to consensus. Members of the American Association of Endocrine Surgeons reviewed and commented on preliminary drafts of the content. RESULTS These clinical guidelines analyze the indications for thyroidectomy as well as its definitions, technique, morbidity, and outcomes. Specific topics include Pathogenesis and Epidemiology, Initial Evaluation, Imaging, Fine Needle Aspiration Biopsy Diagnosis, Molecular Testing, Indications, Extent and Outcomes of Surgery, Preoperative Care, Initial Thyroidectomy, Perioperative Tissue Diagnosis, Nodal Dissection, Concurrent Parathyroidectomy, Hyperthyroid Conditions, Goiter, Adjuncts and Approaches to Thyroidectomy, Laryngology, Familial Thyroid Cancer, Postoperative Care and Complications, Cancer Management, and Reoperation. CONCLUSIONS Evidence-based guidelines were created to assist clinicians in the optimal surgical management of thyroid disease.
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24
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Paniza ACDJ, Mendes TB, Viana MDB, Thomaz DMD, Chiappini PBO, Colozza-Gama GA, Lindsey SC, de Carvalho MB, Alves VAF, Curioni O, Bastos AU, Cerutti JM. Revised criteria for diagnosis of NIFTP reveals a better correlation with tumor biological behavior. Endocr Connect 2019; 8:1529-1538. [PMID: 31671409 PMCID: PMC6893310 DOI: 10.1530/ec-19-0459] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 10/31/2019] [Indexed: 12/20/2022]
Abstract
The recent reclassification of a follicular variant of papillary thyroid carcinoma (FVPTC), subset as noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP), aims to avoid overtreatment of patients with an indolent lesion. The diagnosis of NIFTP has recently been revisited using more rigid criteria. This study presents histological and molecular findings and a long clinical follow-up of 94 FVPTC, 40 cases of follicular adenoma (FTA) and 22 cases of follicular carcinoma (FTC) that were classified before the advent of the NIFTP reclassification. All slides were reviewed using these rigid criteria and analysis of numerous sections of paraffin blocks and reclassified as 7 NIFTPs, 2 EFVPTCs, 29 infiltrative FVPTC (IFVPTCs), 57 invasive EFVPTC (I-EFVPTCs), 39 FTAs and 22 FTCs. Remarkably, EFVPTC and NIFTP patients were all free of disease at the end of follow-up and showed no BRAF mutation. Only one NIFTP sample harbored mutations, an NRAS Q61R. PAX8/PPARG fusion was found in I-EFVPTCs and FTC. Although additional studies are needed to identify a specific molecular profile to aid in the diagnosis of lesions with borderline morphological characteristics, we confirmed that the BRAF V600E mutation is an important tool to exclude the diagnosis of NIFTP. We also show that rigorous histopathological criteria should be strongly followed to avoid missing lesions in which more aggressive behavior is present, mainly via the analysis of capsule or vascular invasion and the presence of papillary structures.
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Affiliation(s)
- Ana Carolina de Jesus Paniza
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Thais Biude Mendes
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Matheus Duarte Borges Viana
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Débora Mota Dias Thomaz
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Gabriel A Colozza-Gama
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Susan Chow Lindsey
- Division of Endocrinology, Department of Medicine, Laboratory of Molecular and Translational Endocrinology, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | | | - Otavio Curioni
- Department of Head and Neck Surgery and Otorhinolaryngology, Hospital Heliópolis, São Paulo, Brazil
| | - André Uchimura Bastos
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, Brazil
- Department of Microbiology, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Janete Maria Cerutti
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, Brazil
- Correspondence should be addressed to J M Cerutti:
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25
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Computerized Cytological Features for Papillary Thyroid Cancer Diagnosis-Preliminary Report. Cancers (Basel) 2019; 11:cancers11111645. [PMID: 31731438 PMCID: PMC6896131 DOI: 10.3390/cancers11111645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 10/09/2019] [Accepted: 10/21/2019] [Indexed: 01/21/2023] Open
Abstract
Fine needle aspiration cytology (FNAC) is the final diagnosis of thyroid nodules before surgery. It is important to further improve the indeterminate FNAC diagnosis results using computerized cytological features. This retrospective cross-sectional study included 240 cases, of whom 110 had histologic diagnosis of papillary thyroid cancers (PTC), 100 had nodular/adenomatous goiters/hyperplasia (benign goiters), 10 had follicular/Hurthle cell carcinomas, and 20 had follicular adenomas. Morphological and chromatic features of FNAC were quantified and analyzed. The result showed that six quantified cytological features were found significantly different between patients with a histologic diagnosis of PTC and patients with histologic diagnosis of benign goiters in multivariate analysis. These cytological features were used to estimate the malignancy risk in nodules with indeterminate FNAC results. The Area Under the Receiver Operating Characteristics (AUROC) of the diagnostic accuracy with a benign or malignant nature was 81.3% (p < 0.001), 78.7% (p = 0.014), and 56.8% (p = 0.52) for nodules with FNAC results of atypia, which is suspicious for malignancy and follicular neoplasm, respectively. In conclusion, quantification of cytological features could be used to develop a computer-aided tool for diagnosing PTC in thyroid nodules with indeterminate FNAC results.
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26
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Rossi ED, Faquin WC, Pantanowitz L. Cytologic features of aggressive variants of follicular-derived thyroid carcinoma. Cancer Cytopathol 2019; 127:432-446. [PMID: 31150164 DOI: 10.1002/cncy.22136] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/03/2019] [Accepted: 04/03/2019] [Indexed: 12/18/2022]
Abstract
Certain carcinomas of the thyroid gland behave aggressively resulting in increased patient morbidity and poor patient prognosis. The diagnosis of these aggressive thyroid cancer subtypes is sometimes challenging and subject to increased interobserver variability. This review deals with the cytological features of such tumors including aggressive variants of papillary thyroid carcinoma, poorly differentiated thyroid carcinoma, and anaplastic thyroid carcinoma. These malignancies fall into 2 groups based on their cytomorphology: those that exhibit distinct microscopic features (eg, nuclear findings typical of classical papillary thyroid carcinoma or marked anaplasia) and those that present with more subtle cytologic features (eg, nuclear pseudostratification, "soap bubble" nuclei, supranuclear or subnuclear cytoplasmic vacuoles, rosette-like structures, hobnail cells). We review the literature regarding these aggressive thyroid cancers and highlight important phenotypic characteristics that can be useful for their diagnosis based on fine needle aspiration.
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Affiliation(s)
- Esther Diana Rossi
- Division of Anatomic Pathology and Histology, Catholic University of Sacred Heart, Rome, Italy
| | - William C Faquin
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Liron Pantanowitz
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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27
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Nishino M. How is noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) shaping the way we interpret thyroid cytology? J Am Soc Cytopathol 2019; 8:1-4. [PMID: 30929753 DOI: 10.1016/j.jasc.2018.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 10/13/2018] [Accepted: 10/15/2018] [Indexed: 06/09/2023]
Affiliation(s)
- Michiya Nishino
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts.
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28
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Abstract
Genomic, clinical, and pathologic studies have prompted a more risk-stratified approach to the management of patients with thyroid nodules. The recent nomenclature change concerning noninvasive follicular thyroid neoplasm with papillary-like nuclear features reflects the clinical trend toward conservative treatment choices for carefully selected low-risk thyroid neoplasms. These developments have occurred in parallel with a growing array of molecular tests intended to improve clinical triage for patients with indeterminate fine needle aspiration diagnoses. This review discusses the implications of the nomenclature revision on the interpretation of thyroid fine needle aspiration and updates available ancillary molecular tests for thyroid fine needle aspirations.
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Affiliation(s)
- Michiya Nishino
- Department of Pathology, Harvard Medical School and Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA.
| | - Jeffrey F Krane
- Department of Pathology, Harvard Medical School and Brigham and Women's Hospital, 75 Francis Street, Amory 3, Boston, MA 02115, USA
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29
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Pigac B, Masic S, Hutinec Z, Masic V. Rare Occurrence of Incidental Finding of Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclear Features in Hürthle Cell Adenoma. Med Arch 2018; 72:367-370. [PMID: 30524171 PMCID: PMC6282913 DOI: 10.5455/medarh.2018.72.367-370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 09/19/2018] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Hürthle cell adenoma is a rare benign lesion of the thyroid gland, however, controversies about its potential malignant behavior still remain. Among thyroid neoplasms, papillary carcinoma is the most common variant with great variety of histological subtypes demonstrating different biological behavior. AIM To raise the awareness of possible coexistence of these two lesions and discussion about possible therapeutic approaches. CASE REPORT A 42 year old female patient was examined because of the pain in the thyroid area. Cytological examination suggested Hürthle cell adenoma. Subsequently, right thyroid lobectomy was performed. Intraoperative frozen sections confirmed the diagnosis, yet final histological analysis revealed encapsulated follicular variant of papillary thyroid carcinoma (EFVPTC), now reclassified as noninvasive follicular thyroid neoplasm with papillary- like nuclear features (NIFTP) within the adenoma, which was not noticed through scintigraphy, ultrasound, cytological and frozen section analysis. CONCLUSIONS Problems concerning both diagnostic and therapeutic approach to these lesions are being discussed, since opinions reported in the literature are divided, posing great challenge for the clinician in determining adequate therapeutic procedures.
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Affiliation(s)
- Biserka Pigac
- Pathology, Cytology and Forensic Medicine Unit, Varazdin General Hospital, Varazdin, Croatia
| | - Silvija Masic
- Clinical Department of Pathology and Cytology “Ljudevit Jurak”, University Hospital Centre Sestre Milosrdnice, Zagreb, Croatia
| | - Zdenka Hutinec
- Department of Pathology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Valentina Masic
- Faculty of Education and Rehabilitation Sciences, University of Zagreb, Zagreb, Croatia
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30
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Lindeman BM, Nehs MA, Angell TE, Alexander EK, Gawande AA, Moore FD, Doherty GM, Cho NL. Effect of Noninvasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features (NIFTP) on Malignancy Rates in Thyroid Nodules: How to Counsel Patients on Extent of Surgery. Ann Surg Oncol 2018; 26:93-97. [DOI: 10.1245/s10434-018-6932-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Indexed: 02/06/2023]
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31
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Raffaelli M, De Crea C, Sessa L, Fadda G, Lombardi CP, Bellantone R. Risk factors for central neck lymph node metastases in follicular variant vs. classic papillary thyroid carcinoma. Endocrine 2018; 62:64-70. [PMID: 29770933 DOI: 10.1007/s12020-018-1607-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 04/15/2018] [Indexed: 12/22/2022]
Abstract
PURPOSE Histological variants of papillary thyroid carcinoma (PTC) have been advocated as possible risk factors for central neck nodal metastases (CNM). A lower incidence of CNM in follicular variant of papillary thyroid carcinoma (fvPTC) when compared with classic PTC (cPTC) has been observed. We aimed to compare risk factors for CNM in patients with fvPTC and cPTC. METHODS The medical records of 1737 patients with a diagnosis of cPTC or fvPTC were reviewed. Demographic, clinical and pathological findings were prospectively registered. Risk factors for CNM were evaluated by univariate and multivariate analysis in cPTC vs. fvPTC patients. RESULTS Six hundred and fifty-two patients (37.5%) had fvPTC. The diagnosis was incidental in 69.5% of the fvPTC and in 29.4% of the cPTC patients. Overall, 26.3% cPTC and 8.3% fvPTC patients showed CNM (p < 0.001). In both cPTC and fvPTC patients at univariate analysis age <45 years, nonincidental diagnosis, tumor size >5 mm, multifocality, angioinvasion and extracapsular invasion were risk factors for CNM. At multivariate analysis independent risk factors for CNM in both cPTC and fvPTC patients were age <45 years (p < 0.01), nonincidental diagnosis (p < 0.001), multifocality (p < 0.001) and extracapsular invasion (p < 0.001). CONCLUSIONS No differences were observed between cPTC and fvPTC with regard to risk factors of CNM. fvPTC seems associated with a lower incidence of CNM, presumably because of the higher rate of incidental diagnosis. With the exception of age, in patients with a preoperative diagnosis of PTC, no preoperatively available clinical parameter is a reliable predictor of CNM.
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Affiliation(s)
- Marco Raffaelli
- Division of Endocrine and Metabolic Surgery, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Carmela De Crea
- Division of Endocrine and Metabolic Surgery, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Luca Sessa
- Division of Endocrine and Metabolic Surgery, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Guido Fadda
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Celestino Pio Lombardi
- Division of Endocrine and Metabolic Surgery, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Rocco Bellantone
- Division of Endocrine and Metabolic Surgery, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
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Mahajan S, Agarwal S, Kocheri N, Jain D, Mathur SR, Iyer VK. Cytopathology of non-invasive follicular thyroid neoplasm with papillary-like nuclear features: A comparative study with similar patterned papillary thyroid carcinoma variants. Cytopathology 2018; 29:233-240. [DOI: 10.1111/cyt.12537] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2018] [Indexed: 01/31/2023]
Affiliation(s)
- S. Mahajan
- Department of Pathology; All India Institute of Medical Sciences; New Delhi India
| | - S. Agarwal
- Department of Pathology; All India Institute of Medical Sciences; New Delhi India
| | - N. Kocheri
- Department of Pathology; All India Institute of Medical Sciences; New Delhi India
| | - D. Jain
- Department of Pathology; All India Institute of Medical Sciences; New Delhi India
| | - S. R. Mathur
- Department of Pathology; All India Institute of Medical Sciences; New Delhi India
| | - V. K. Iyer
- Department of Pathology; All India Institute of Medical Sciences; New Delhi India
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Samuels SL, Surrey LF, Hawkes CP, Amberge M, Mostoufi-Moab S, Langer JE, Adzick NS, Kazahaya K, Bhatti T, Baloch Z, LiVolsi VA, Bauer AJ. Characteristics of Follicular Variant Papillary Thyroid Carcinoma in a Pediatric Cohort. J Clin Endocrinol Metab 2018; 103:1639-1648. [PMID: 29438531 PMCID: PMC6436765 DOI: 10.1210/jc.2017-02454] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 02/02/2018] [Indexed: 01/25/2023]
Abstract
CONTEXT In adults, noninvasive follicular variant of papillary thyroid carcinoma (FVPTC) is considered a low risk for metastasis and persistent/recurrent disease. OBJECTIVE The goal of this study was to assess the clinical, sonographic, and histopathologic features of FVPTC in a pediatric cohort. DESIGN A retrospective review of subjects <19 years of age with papillary thyroid carcinoma (PTC) who underwent thyroidectomy between January 2010 and July 2015. SETTING Multidisciplinary academic referral center. PATIENTS Patients with FVPTC, defined as a tumor ≥1 cm in the largest dimension with predominant follicular growth, complete lack of well-formed papillae, and nuclear features of PTC. MAIN OUTCOME MEASURES Tumor size and location, presence of a tumor capsule, capsule and vascular invasion, lymph node invasion, and distant metastasis. RESULTS Eighteen patients with FVPTC were identified from a case cohort of 110 patients with PTC. On histopathology, 13 (72%) had unifocal nodules and 14 (78%) had completely encapsulated FVPTC. Capsule invasion was frequent (nine of 14; 64%), and vascular invasion was found in one-third of patients (six of 18; 33%). No lymph node metastases were found in the 13 patients (72%) who had a central neck lymph node dissection. One patient with vascular invasion had distant metastases. CONCLUSION When strictly defined, FVPTC in pediatric patients has a low risk for bilateral disease and metastasis. Prospective studies are needed to confirm whether lobectomy with surveillance is sufficient to achieve remission in pediatric patients with low-risk FVPTC.
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Affiliation(s)
- Stephanie L Samuels
- Division of Endocrinology and Diabetes, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Lea F Surrey
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Colin P Hawkes
- Division of Endocrinology and Diabetes, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Madeline Amberge
- Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Sogol Mostoufi-Moab
- Division of Endocrinology and Diabetes, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Oncology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Jill E Langer
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - N Scott Adzick
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Surgery, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ken Kazahaya
- Divison of Pediatric Otolaryngology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Otorhinolaryngology/Head and Neck Surgery, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Tricia Bhatti
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Zubair Baloch
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Virginia A LiVolsi
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Andrew J Bauer
- Division of Endocrinology and Diabetes, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
- Correspondence and Reprint Requests: Andrew J. Bauer, MD, Division of Endocrinology and Diabetes, The Thyroid Center, Children’s Hospital of Philadelphia, Suite 11NW30, 3401 Civic Center Boulevard, Philadelphia, Pennsylvania 19104. E-mail:
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Kim M, Jeon MJ, Oh HS, Park S, Kim TY, Shong YK, Kim WB, Kim K, Kim WG, Song DE. BRAF and RAS Mutational Status in Noninvasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features and Invasive Subtype of Encapsulated Follicular Variant of Papillary Thyroid Carcinoma in Korea. Thyroid 2018; 28:504-510. [PMID: 29439609 DOI: 10.1089/thy.2017.0382] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) is an indolent thyroid tumor previously known as noninvasive subtype of encapsulated follicular variant of papillary thyroid carcinoma (EFVPTC). The absence of BRAFV600E mutations has been considered characteristic of NIFTPs. However, a recent study from Korea found that 28.6% of NIFTPs harbored a BRAF mutation. This study evaluated BRAF and RAS mutations in NIFTPs and invasive subtype of EFVPTCs. METHODS This study enrolled 32 patients with NIFTP and 48 with invasive EFVPTC. BRAF, NRAS, HRAS, and KRAS mutations were evaluated by direct sequencing using DNA from fresh-frozen tissues and formalin-fixed, paraffin-embedded tissue samples. RESULTS The primary tumor size of NIFTP was smaller than that of invasive EFVPTC (median 2.8 cm vs. 3.2 cm; p = 0.03). Cervical lymph node metastases were found in only four (8%) patients with invasive EFVPTC. There was no BRAF mutation in NIFTPs, whereas invasive EFVPTCs had three (6%) BRAFV600E mutations and one (2%) BRAFK601E mutation. RAS mutations were detected in 15 (47%) NIFTPs and 22 (46%) invasive EFVPTCs. NRAS mutations in codon 61 were the most common mutations in NIFTPs (34%) and invasive EFVPTCs (27%). There was no significant difference in the frequency of RAS mutations between the two groups. CONCLUSIONS There was no BRAF mutation in any of the NIFTPs. RAS mutations, particularly mutations in codon 61 of NRAS, were the most common mutations in both NIFTPs and invasive EFVPTCs. The presence of a RAS mutation is not helpful for preoperative differentiation between NIFTPs and invasive EFVPTCs.
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Affiliation(s)
- Mijin Kim
- 1 Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Min Ji Jeon
- 1 Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Hye-Seon Oh
- 1 Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Suyeon Park
- 1 Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Tae Yong Kim
- 1 Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Young Kee Shong
- 1 Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Won Bae Kim
- 1 Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Kyunggon Kim
- 2 Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Won Gu Kim
- 1 Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Dong Eun Song
- 3 Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
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Johnson DN, Furtado LV, Long BC, Zhen CJ, Wurst M, Mujacic I, Kadri S, Segal JP, Antic T, Cipriani NA. Noninvasive Follicular Thyroid Neoplasms With Papillary-like Nuclear Features Are Genetically and Biologically Similar to Adenomatous Nodules and Distinct From Papillary Thyroid Carcinomas With Extensive Follicular Growth. Arch Pathol Lab Med 2018; 142:838-850. [PMID: 29582677 DOI: 10.5858/arpa.2017-0118-oa] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT - Proposed noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTPs), formerly noninvasive encapsulated papillary carcinoma, follicular variant (PTC-FV), is an indolent tumor with follicular growth and frequent RAS mutations. OBJECTIVE - To detect histologic and molecular differences separating NIFTP from follicular adenomas (FAs) and invasive carcinomas, particularly papillary carcinomas with extensive follicular growth (PTC-EFGs) and invasive encapsulated PTC-FV (IE-PTC-FV). DESIGN - Sixty-one tumors were reviewed histologically and reclassified into 32 NIFTPs (52%), 4 IE-PTC-FVs (7%), 14 PTC-EFGs (23%), and 11 FAs (18%). Next-generation sequencing for mutations in 50 genes was performed. Clinical outcomes were recorded. RESULTS - The NIFTPs and FAs were well circumscribed and unencapsulated. The FAs had bland nuclei, whereas the NIFTPs showed at least 2 of 3 (67%; sufficient) nuclear features (enlargement, irregular contours, chromatin clearing). The IE-PTC-FVs had follicular growth, sufficient nuclear features, and extensive capsular invasion. The PTC-EFGs had a median of 5% papillae with intrathyroidal invasion (broad-based, sclerotic, or small follicle growth patterns); intranuclear pseudoinclusions were present only in PTC-EFGs (9 of 14; 64%). Mutations included RAS in 20 of the 32 NIFTPs (62%), 4 of the 11 FAs (36%), and 3 of the 4 IE-PTC-FVs (75%); BRAF K601E in 1 NIFTP (3%); BRAF V600E in 5 PTC-EFGs (36%). No NIFTPs or FAs recurred or metastasized. All 4 IE-PTC-FVs (100%) had hematogenous metastasis. Two PTC-EFGs (14%) had lymphatic metastasis. CONCLUSIONS - The morphologic similarity and RAS mutations in FAs, NIFTPs, and IE-PTC-FVs supports the genetic similarity of those follicular neoplasms in contrast to the unique presence of BRAF V600E mutations in PTC-EFGs. Using strict diagnostic criteria supported by molecular testing, tumors with extensive follicular growth can be classified into follicular type or RAS-like (FA, NIFTP, IE-PTC-FV) versus papillary type or BRAF V600E-like (PTC-EFG).
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Nicole A Cipriani
- From the Divisions of Anatomic Pathology (Drs Johnson, Antic, and Cipriani) and Molecular Pathology (Messrs Long, Zhen, and Mujacic; Ms Wurst; and Drs Kadri and Segal), Department of Pathology, University of Chicago, Chicago, Illinois; and the ARUP Laboratories, University of Utah, Salt Lake City (Dr Furtado)
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Kim MJ, Won JK, Jung KC, Kim JH, Cho SW, Park DJ, Park YJ. Clinical Characteristics of Subtypes of Follicular Variant Papillary Thyroid Carcinoma. Thyroid 2018; 28:311-318. [PMID: 29343212 DOI: 10.1089/thy.2016.0671] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Among follicular variant papillary thyroid carcinomas (FVPTCs), the noninvasive encapsulated subtype has an excellent prognosis. For this reason, reclassification of noninvasive encapsulated FVPTC (EFVPTC) as a new entity called "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) has been proposed, but controversy remains. To characterize noninvasive EFVPTC in an Asian population, the clinicopathologic features of each FVPTC subtype were compared in a Korean population. METHODS FVPTC patients (n = 142) who underwent thyroidectomy between 2009 and 2014, and whose tumor size was >1 cm, were included in the study. The surgical pathology of each patient was reevaluated by two independent expert pathologists. RESULTS The percentages of noninvasive and invasive EFVPTC and infiltrative FVPTC (IFVPTC) in the study were 30%, 31%, and 39%, respectively. There was no difference in preoperative cytological diagnosis or the extent of surgery between noninvasive and invasive EFVPTC. However, the proportion of Bethesda category IV was lower in IFVPTC (16%) than in noninvasive and invasive EFVPTC (35% and 36%, respectively). Therefore, thyroid lobectomy was more common in noninvasive or invasive EFVPTC (54% or 48%, respectively) than in IFVPTC (16%). Noninvasive EFVPTC showed lower multiplicity, extrathyroidal extension, and BRAFV600E mutation frequency (three cases; 8%) than did invasive EFVPTC, but other pathological characteristics were similar. However, IFVPTC showed significant differences in tumor size, extrathyroidal extension, lymph node metastasis, Tumor Node Metastasis stage, and American Thyroid Association high-risk category compared with noninvasive and invasive EFVPTC. In the noninvasive EFVPTC group, there were six (14%) cases with multifocality and three (7%) cases with lymph node metastasis. However, only two cases with multifocality and one case with lymph node metastasis originated from noninvasive FVPTC, while the other cases were from coexisting conventional PTCs. CONCLUSIONS Noninvasive EFVPTC has favorable pathological features, but lymph node metastasis or BRAFV600E mutations were observed in some patients. Therefore, in order for the distinction between noninvasive EFVPTC and invasive EFVPTC to have more clinical significance, the criteria for NIFTP need to be more strictly revised.
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Affiliation(s)
- Min Joo Kim
- 1 Department of Internal Medicine, Seoul National University College of Medicine , Seoul, Republic of Korea
| | - Jae-Kyung Won
- 2 Department of Pathology, Seoul National University Hospital and College of Medicine , Seoul, Republic of Korea
| | - Kyeong Cheon Jung
- 2 Department of Pathology, Seoul National University Hospital and College of Medicine , Seoul, Republic of Korea
| | - Ji-Hoon Kim
- 3 Department of Radiology, Seoul National University College of Medicine , Seoul, Republic of Korea
| | - Sun Wook Cho
- 1 Department of Internal Medicine, Seoul National University College of Medicine , Seoul, Republic of Korea
| | - Do Joon Park
- 1 Department of Internal Medicine, Seoul National University College of Medicine , Seoul, Republic of Korea
| | - Young Joo Park
- 1 Department of Internal Medicine, Seoul National University College of Medicine , Seoul, Republic of Korea
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Lau RP, Paulsen JD, Brandler TC, Liu CZ, Simsir A, Zhou F. Impact of the Reclassification of "Noninvasive Encapsulated Follicular Variant of Papillary Thyroid Carcinoma" to "Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclear Features" on the Bethesda System for Reporting Thyroid Cytopathology: A Large Academic Institution's Experience. Am J Clin Pathol 2017; 149:50-54. [PMID: 29272354 DOI: 10.1093/ajcp/aqx136] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Noninvasive encapsulated follicular variant of papillary thyroid carcinoma (NEFVPTC) was recently reclassified as noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). Excluding "carcinoma" from the new terminology shifted NIFTP out of the malignant category and altered Bethesda System for Reporting Thyroid Cytopathology (BSRTC) rates of malignancy (ROMs) on thyroid fine-needle aspiration (FNA). Because of potential effects on management guidelines, we examined our ROM data. METHODS In total, 750 thyroid FNAs with surgical resections from January 2013 to June 2016 were reviewed (including 87 NIFTPs). ROM was recorded for each BSRTC category: classifying NEFVPTC/NIFTP as "malignant" and reclassifying NEFVPTC/NIFTP as "nonmalignant." RESULTS ROM changes were as follows: nondiagnostic (ND), no change; benign, 5.5% to 2.5%; atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS), 42.3% to 22.3%; follicular neoplasm/suspicious for follicular neoplasm (FN/SFN), 48.7% to 17.9%; suspicious for malignancy (SFM), 93.6% to 61.7%; and positive for malignancy, 100% to 97%. CONCLUSIONS Decreased ROM was seen in most BSRTC categories, most significantly in AUS/FLUS, FN/SFN, and SFM categories.
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Affiliation(s)
- Ryan P Lau
- Department of Pathology, New York University School of Medicine, New York, NY
| | - John D Paulsen
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Tamar C Brandler
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Cheng Z Liu
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Aylin Simsir
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Fang Zhou
- Department of Pathology, New York University School of Medicine, New York, NY
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Kim TH, Lee M, Kwon AY, Choe JH, Kim JH, Kim JS, Hahn SY, Shin JH, Chung MK, Son YI, Ki CS, Yim HS, Kim YL, Chung JH, Kim SW, Oh YL. Molecular genotyping of the non-invasive encapsulated follicular variant of papillary thyroid carcinoma. Histopathology 2017; 72:648-661. [DOI: 10.1111/his.13401] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 09/16/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Tae Hyuk Kim
- Division of Endocrinology & Metabolism; Department of Medicine; Thyroid Centre; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Minju Lee
- Department of Pathology; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Ah-Young Kwon
- Department of Pathology; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Jun-Ho Choe
- Division of Breast and Endocrine Surgery; Department of Surgery; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Jung-Han Kim
- Division of Breast and Endocrine Surgery; Department of Surgery; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Jee Soo Kim
- Division of Breast and Endocrine Surgery; Department of Surgery; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Soo Yeon Hahn
- Department of Radiology; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Jung Hee Shin
- Department of Radiology; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Man Ki Chung
- Department of Otorhinolaryngology-Head and Neck Surgery; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Young Ik Son
- Department of Otorhinolaryngology-Head and Neck Surgery; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Chang-Seok Ki
- Department of Laboratory Medicine and Genetics; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | | | | | - Jae Hoon Chung
- Division of Endocrinology & Metabolism; Department of Medicine; Thyroid Centre; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Sun Wook Kim
- Division of Endocrinology & Metabolism; Department of Medicine; Thyroid Centre; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Young Lyun Oh
- Department of Pathology; Samsung Medical Centre; Sungkyunkwan University School of Medicine; Seoul Korea
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Helmi H, Idrees H, Alshehri A, Alsaif A. Rare behavior of follicular variant of papillary thyroid cancer. Clin Case Rep 2017; 5:1789-1792. [PMID: 29152272 PMCID: PMC5676271 DOI: 10.1002/ccr3.1177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/06/2017] [Accepted: 08/15/2017] [Indexed: 12/03/2022] Open
Abstract
Follicular variant of papillary thyroid cancer typically favors nodal spread. We report a case with hematogenous spread including multi‐organ involvement and describe our staged management approach. This is the first case to report follicular variant of papillary thyroid cancer with simultaneous adrenal and renal involvement.
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Affiliation(s)
- Hadeel Helmi
- Department of Surgery King Saud University Riyadh Saudi Arabia
| | - Hend Idrees
- Breast and Endocrine Surgery Division Department of Surgery King Saud University Riyadh Saudi Arabia
| | - Ameen Alshehri
- Breast and Endocrine Surgery Division Department of Surgery King Saud University Riyadh Saudi Arabia
| | - Abdulaziz Alsaif
- Breast and Endocrine Surgery Division Department of Surgery King Saud University Riyadh Saudi Arabia
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40
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Zhou H, Baloch ZW, Nayar R, Bizzarro T, Fadda G, Adhikari-Guragain D, Hatem J, Larocca LM, Samolczyk J, Slade J, Rossi ED. Noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP): Implications for the risk of malignancy (ROM) in the Bethesda System for Reporting Thyroid Cytopathology (TBSRTC). Cancer Cytopathol 2017; 126:20-26. [DOI: 10.1002/cncy.21926] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/17/2017] [Accepted: 08/29/2017] [Indexed: 01/21/2023]
Affiliation(s)
- Haijun Zhou
- Department of Pathology; Northwestern University, Feinberg School of Medicine and Northwestern Memorial Hospital; Chicago Illinois
| | - Zubair W. Baloch
- Department of Pathology; Hospital of University of Pennsylvania; Philadelphia Pennsylvania
| | - Ritu Nayar
- Department of Pathology; Northwestern University, Feinberg School of Medicine and Northwestern Memorial Hospital; Chicago Illinois
| | - Tommaso Bizzarro
- Department of Anatomic Pathology and Histology, “A. Gemelli” University Polyclinic Foundation; University Rome; Italy
| | - Guido Fadda
- Department of Anatomic Pathology and Histology, “A. Gemelli” University Polyclinic Foundation; University Rome; Italy
| | | | - Joseph Hatem
- Department of Pathology; Hospital of University of Pennsylvania; Philadelphia Pennsylvania
| | - Luigi M. Larocca
- Department of Anatomic Pathology and Histology, “A. Gemelli” University Polyclinic Foundation; University Rome; Italy
| | - Julia Samolczyk
- Department of Pathology; Northwestern University, Feinberg School of Medicine and Northwestern Memorial Hospital; Chicago Illinois
| | - Jamie Slade
- Department of Pathology; Northwestern University, Feinberg School of Medicine and Northwestern Memorial Hospital; Chicago Illinois
| | - Esther Diana Rossi
- Department of Anatomic Pathology and Histology, “A. Gemelli” University Polyclinic Foundation; University Rome; Italy
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Cipolletta Campanile A, Malzone MG, Losito NS, Botti G, Chiofalo MG, Faggiano A, Siciliano R, Colao A, Pezzullo L, Fulciniti F. Accuracy of Fine Needle Cytology in Histological Prediction of Papillary Thyroid Carcinoma Variants: a Prospective Study. Endocr Pathol 2017. [PMID: 28639242 DOI: 10.1007/s12022-017-9488-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Fine needle cytology (FNC) is a crucial procedure in the preoperative diagnosis of thyroid tumors. Papillary thyroid carcinoma (PTC), in its classic variant (cPTC), is the most common malignant neoplasm of the thyroid. Several histological variants of PTC have been described, each one with its own characteristics and prognosis. The ability of FNC to identify the variants represents a challenge even for a skilled pathologist. The aim of this study was to evaluate the diagnostic cytological accuracy of FNC in PTC and to look for specific features that could predict the different variants. This was a single center prospective study on 128 patients who received a diagnosis of PTC on FNC. The smears were blindly reviewed by two cytopathologists to create a frequency score (0, 1, 2, 3) of the features for each variant. The cytological parameters were divided into three groups: architectural, nucleo-cytoplasmic, and background features. Univariate analysis was performed by chi-square test with Yates correction and Fisher exact test as appropriate. Multiple regression analysis was performed among the variables correlated at the linear correlation. The correlation study between cytology and histology showed an accuracy of FNC in classic, follicular, and oncocytic PTC variants of 63.5, 87.5, and 87% respectively. Familiarity with cytological features may allow an early diagnosis of a given PTC variant on FNC samples. This is fundamental in a preoperative evaluation for the best surgical approach and subsequent treatment.
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Affiliation(s)
- Anna Cipolletta Campanile
- Pathology and Cytopathology Unit, National Cancer Institute "Fondazione G. Pascale", via Mariano Semmola, 80131, Naples, Italy
| | - Maria Gabriella Malzone
- Pathology and Cytopathology Unit, National Cancer Institute "Fondazione G. Pascale", via Mariano Semmola, 80131, Naples, Italy.
| | - Nunzia Simona Losito
- Pathology and Cytopathology Unit, National Cancer Institute "Fondazione G. Pascale", via Mariano Semmola, 80131, Naples, Italy
| | - Gerardo Botti
- Pathology and Cytopathology Unit, National Cancer Institute "Fondazione G. Pascale", via Mariano Semmola, 80131, Naples, Italy
| | - Maria Grazia Chiofalo
- Thyroid Surgery Unit, National Cancer Institute "Fondazione G. Pascale", Naples, Italy
| | - Antongiulio Faggiano
- Thyroid Surgery Unit, National Cancer Institute "Fondazione G. Pascale", Naples, Italy
| | - Roberta Siciliano
- Department of Industrial Engineering, University of Naples "Federico II", via Claudio - 21, 80131, Naples, Italy
| | - Annamaria Colao
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", via Pansini - 5, 80131, Naples, Italy
| | - Luciano Pezzullo
- Thyroid Surgery Unit, National Cancer Institute "Fondazione G. Pascale", Naples, Italy
| | - Franco Fulciniti
- Clinical Cytopathology Service, Institute of Pathology, via A. Franzoni - 45, 6601, Locarno, Switzerland
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Basolo F, Macerola E, Ugolini C, Poller DN, Baloch Z. The Molecular Landscape of Noninvasive Follicular Thyroid Neoplasm With Papillary-like Nuclear Features (NIFTP): A Literature Review. Adv Anat Pathol 2017; 24:252-258. [PMID: 28777140 DOI: 10.1097/pap.0000000000000163] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The encapsulated and noninvasive follicular variant of papillary thyroid carcinoma has been recently reclassified as noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). These tumors demonstrate indolent behavior. This change in nomenclature will have great clinical impact by avoiding overtreatment of patients with NIFTP lesions who in the past were diagnosed with thyroid carcinoma and typically received completion thyroidectomy followed by radioactive iodine ablation. The pathologic diagnosis of NIFTP requires surgical removal of the thyroid lesion or the lobe harboring it, and thorough sampling of the complete interface between the tumor capsule and the thyroid parenchyma, to exclude foci of invasion. From a cytologic point of view, the unequivocal differential diagnosis between NIFTP and infiltrative follicular variant of papillary thyroid carcinoma in fine-needle aspiration is close to impossible based on cellular and architectural features. Therefore, use of adjunct molecular testing on fine-needle aspiration specimens may be essential for the preoperative diagnosis of low-risk tumors such as NIFTP for appropriate patient management. This review discusses and summarizes the existing known literature on molecular characteristics of NIFTP tumors, so far reported, including cases retrospectively classified or prospectively diagnosed as NIFTP. Brief reference is also made to new and promising approaches applicable to the diagnosis of this tumor.
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Kim SK, Kwon AY, Back K, Park I, Hur N, Lee JH, Choe JH, Kim JH, Oh YL, Kim JS. Predictive Factors of Lymph Node Metastasis in Follicular Variant of Papillary Thyroid Carcinoma. Ann Surg Oncol 2017; 24:2617-2623. [PMID: 28685355 DOI: 10.1245/s10434-017-5912-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Compared with conventional papillary thyroid carcinoma (PTC), follicular variant of PTC (FV-PTC) shows less aggressive behavior and better prognosis. Nonetheless, regional lymph node (LN) metastasis was found in 22.8% of FV-PTC patients. Because LN metastasis is a proven predictor of recurrence in PTC, it is important to assess LN metastasis in FV-PTC patients. METHODS We retrospectively reviewed 134 FV-PTC patients who underwent thyroidectomy with neck dissection. RESULTS Central LN metastasis (CLNM) and lateral LN metastasis (LLNM) were found in 50 (37.3%) and 16 (11.9%) patients, respectively. In the multivariate analysis for CLNM, male sex (adjusted OR 4.735, p = 0.001), nonencapsulated form (adjusted OR 2.863, p = 0.022), and tumor size >1.0 cm (adjusted OR 3.157, p = 0.008) were independent predictors of high prevalence of CLNM in FV-PTC patients. In the multivariate analysis for LLNM, microscopic extrathyroidal extension (ETE) (adjusted OR 3.939, p = 0.041) and CLNM (adjusted OR 13.340, p = 0.001) were independent predictors of high prevalence of LLNM in FV-PTC patients. CONCLUSIONS Meticulous perioperative evaluation and prophylactic central neck dissection may be beneficial for FV-PTC patients with male sex, nonencapsulated form, and tumor size >1.0 cm. Moreover, cautious perioperative evaluation of lateral neck LN may be mandatory for FV-PTC patients with microscopic ETE and CLNM.
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Affiliation(s)
- Seo Ki Kim
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Ah-Young Kwon
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Kyorim Back
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Inhye Park
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Nayoon Hur
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jun Ho Lee
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea
| | - Jun-Ho Choe
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
| | - Jung-Han Kim
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Young Lyun Oh
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jee Soo Kim
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
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Preoperative clinicopathological characteristics of patients with solitary encapsulated follicular variants of papillary thyroid carcinomas. J Surg Oncol 2017; 116:746-755. [DOI: 10.1002/jso.24700] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 05/11/2017] [Indexed: 01/09/2023]
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Lee SE, Hwang TS, Choi YL, Kim WY, Han HS, Lim SD, Kim WS, Yoo YB, Kim SK. Molecular Profiling of Papillary Thyroid Carcinoma in Korea with a High Prevalence of BRAF V600E Mutation. Thyroid 2017; 27:802-810. [PMID: 28293988 DOI: 10.1089/thy.2016.0547] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND The BRAFV600E mutation in papillary thyroid carcinoma (PTC) is particularly prevalent in Korea, and a considerable number of wild-type BRAF PTCs harbor RAS mutations. In addition, subsets of other genetic alterations clearly exist, but their prevalence in the Korean population has not been well studied. Recent increased insight into noninvasive encapsulated follicular variant PTC has prompted endocrine pathologists to reclassify this entity as "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP). This study analyzed the genetic alterations among the histologic variants of PTC, including NIFTP. METHODS Mutations of the BRAF and RAS genes and rearrangement of the RET/PTC1, NTRK1, and ALK genes using 769 preoperative fine-needle aspiration specimens and resected PTCs were analyzed. RESULTS Molecular alterations were found in 687 (89.3%) of 769 PTCs. BRAFV600E mutation (80.8%) was the most frequent alteration, followed by RAS mutation and RET/PTC1, NTRK1, and ALK rearrangements (5.6%, 2.1%, 0.4%, and 0%, respectively). The low prevalence of NTRK1 fusions and the absence of an ALK fusion detected in Korea may also be attributed to the higher prevalence of the BRAFV600E mutation. There were significant differences in the frequency of the genetic alterations among the histologic variants of PTC. The prevalence of NIFTP in PTC was 2.7%, and among the NIFTPs, 28.6% and 57.1% harbored BRAF and RAS mutations, respectively. Clinicopathologic factors and mutational profiles between NIFTP and encapsulated follicular variant PTC with capsular invasion group were not significantly different. CONCLUSIONS Genetic alterations in PTC vary among its different histologic variants and seem to be different in each ethnic group.
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Affiliation(s)
- Seung Eun Lee
- 1 Department of Pathology, Konkuk University School of Medicine , Seoul, Korea
| | - Tae Sook Hwang
- 1 Department of Pathology, Konkuk University School of Medicine , Seoul, Korea
| | - Yoon-La Choi
- 2 Department of Pathology and Translational genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Korea
| | - Wook Youn Kim
- 1 Department of Pathology, Konkuk University School of Medicine , Seoul, Korea
| | - Hye Seung Han
- 1 Department of Pathology, Konkuk University School of Medicine , Seoul, Korea
| | - So Dug Lim
- 1 Department of Pathology, Konkuk University School of Medicine , Seoul, Korea
| | - Wan-Seop Kim
- 1 Department of Pathology, Konkuk University School of Medicine , Seoul, Korea
| | - Young Bum Yoo
- 3 Department of Surgery, Konkuk University School of Medicine , Seoul, Korea
| | - Suk Kyeong Kim
- 4 Department of Internal Medicine, Konkuk University School of Medicine , Seoul, Korea
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Sullivan MC, Graham PH, Alexander EK, Ruan DT, Nehs MA, Gawande AA, Moore FD, Howitt BE, Strickland KC, Krane JF, Barletta JA, Cho NL. Prevalence of Contralateral Tumors in Patients with Follicular Variant of Papillary Thyroid Cancer. J Am Coll Surg 2016; 224:1021-1027. [PMID: 28017809 DOI: 10.1016/j.jamcollsurg.2016.12.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 12/09/2016] [Accepted: 12/09/2016] [Indexed: 01/22/2023]
Abstract
BACKGROUND Thyroid lobectomy alone is being performed increasingly for patients with encapsulated follicular variant of papillary thyroid carcinoma (fvPTC). However, the prevalence of contralateral disease in these patients is unknown. We investigated the presence of synchronous disease in fvPTC to improve decision making about the extent of surgical resection and need for surveillance. STUDY DESIGN We performed a retrospective review of patients who underwent thyroid surgery from October 2009 to February 2013 with a diagnosis of fvPTC as their primary lesion. We collected information on patient demographics, nodule size, multifocality, fine-needle aspiration results, lymphovascular invasion, extrathyroidal extension, and lymph node metastasis. Tumors were divided into noninvasive and invasive/infiltrative fvPTC categories. Characteristics of solitary and bilateral fvPTC were compared. RESULTS We identified 124 patients with final pathology demonstrating fvPTC. The most common fine-needle aspiration diagnosis was "suspicious for malignancy" (n = 53). Sixty-five contralateral tumors were identified in 44 of 124 patients (35.5%) and included fvPTC (n = 40), classical PTC (n = 22), tall cell PTC (n = 2), and follicular carcinoma (n = 1). Fifty contralateral tumors were 1 to 5 mm, 10 measured 6 to 9 mm, and 5 were ≥10 mm. Contralateral disease correlated significantly with lymphovascular invasion (p = 0.037) and larger primary lesions (p = 0.020). There was no significant difference noted in extrathyroidal extension or lymph node metastasis. Both noninvasive and invasive/infiltrative fvPTC demonstrated similar rates of contralateral disease. CONCLUSIONS Bilateral disease is common in fvPTC, primarily in the form of papillary microcarcinomas. Future monitoring of the contralateral lobe should be discussed with fvPTC patients who do not undergo completion thyroidectomy.
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Affiliation(s)
| | - Paul H Graham
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Erik K Alexander
- Department of Medicine, Thyroid Unit, Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Boston, MA
| | - Daniel T Ruan
- Department of Surgery, Brigham and Women's Hospital, Boston, MA
| | - Matthew A Nehs
- Department of Surgery, Brigham and Women's Hospital, Boston, MA
| | - Atul A Gawande
- Department of Surgery, Brigham and Women's Hospital, Boston, MA
| | - Francis D Moore
- Department of Surgery, Brigham and Women's Hospital, Boston, MA
| | - Brooke E Howitt
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | | | - Jeffrey F Krane
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | | | - Nancy L Cho
- Department of Surgery, Brigham and Women's Hospital, Boston, MA.
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Vinciguerra GLR, Noccioli N, Bartolazzi A. Diffuse Follicular Variant of Papillary Thyroid Carcinoma: A Case Report with a Revision of Literature. Rare Tumors 2016; 8:6536. [PMID: 28191291 PMCID: PMC5226049 DOI: 10.4081/rt.2016.6536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/25/2016] [Accepted: 07/26/2016] [Indexed: 11/23/2022] Open
Abstract
The diffuse follicular variant of papillary thyroid carcinoma (DFV-PTC) is a rare malignant thyroid condition. It represents an uncommon variant of papillary carcinoma characterized by a diffuse involvement of thyroid parenchyma, follicular architecture and nuclear features of PTC in absence of a surrounding capsule. Up to date few data have been collected about this entity and, at the best of our knowledge, only 24 cases have been reported in the literature. According to these reports DFV-PTC seems to occur preferentially in young women and shows more aggressive behavior than other papillary thyroid tumors. Herein we present an unusual case of DFV-PTC occurring in an 83 years old woman, involving the entire thyroid gland, without distinct or prevalent thyroid nodules. The tumor was clinically misdiagnosed as obstructive goiter.
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Affiliation(s)
| | - Niccolò Noccioli
- Department of Pathology, Sant'Andrea Hospital, University Sapienza of Rome , Italy
| | - Armando Bartolazzi
- Department of Pathology, Sant'Andrea Hospital, University Sapienza of Rome , Italy
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Canberk S, Gunes P, Onenerk M, Erkan M, Kilinc E, Kocak Gursan N, Kilicoglu GZ. New Concept of the Encapsulated Follicular Variant of Papillary Thyroid Carcinoma and Its Impact on the Bethesda System for Reporting Thyroid Cytopathology: A Single-Institute Experience. Acta Cytol 2016; 60:198-204. [PMID: 27414983 DOI: 10.1159/000447990] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 06/23/2016] [Indexed: 01/19/2023]
Abstract
BACKGROUND The encapsulated follicular variant (EFV) of papillary thyroid carcinoma (PTC) is the most discussed entity in thyroid pathology. Recently, the question of whether or not EFV-PTC is a malignant entity has been the subject of renewed discussion in the light of recent molecular and clinical studies. The aim of this study was to analyze the malignancy ratios of each category of the Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) if EFV-PTC is no longer considered as a malignant entity. MATERIALS AND METHODS Data on thyroid fine-needle aspirations (n = 1,886) with surgical follow-up between 1999 and 2014 were studied. EFV-PTC cases constituted 27% (94/343) of the malignant cases. RESULTS Malignancy ratios were determined as nondiagnostic, benign, atypia/follicular lesion of undetermined significance, suspicious for follicular neoplasm/follicular neoplasm, suspicious for malignancy, and malignant categories of the TBSRTC in 13, 7, 45, 30, 72 and 98%, respectively. If EFV-PTC was not regarded as malignant, malignancy ratios would decrease to 6.5, 6, 30, 10, 48, and 87% for each category in the same order. CONCLUSIONS The current study showed that the most significant decrease in relative malignancy ratios was seen in the suspicious for follicular neoplasm/follicular neoplasm category (66% relative decrease), but all categories represented a considerable decrease.
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Affiliation(s)
- Sule Canberk
- Department of Pathology-Cytopathology, Haydarpasa Numune Education and Research Hospital, Istanbul, Turkey
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Ninety-four cases of encapsulated follicular variant of papillary thyroid carcinoma: A name change to Noninvasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features would help prevent overtreatment. Mod Pathol 2016; 29:698-707. [PMID: 27102347 DOI: 10.1038/modpathol.2016.65] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 02/23/2016] [Accepted: 02/27/2016] [Indexed: 11/09/2022]
Abstract
Encapsulated follicular variant of papillary thyroid carcinoma is a common thyroid gland cancer, with a highly indolent behavior. Recently, reclassification as a non-malignant neoplasm has been proposed. There is no comprehensive, community hospital based longitudinal evaluation of encapsulated follicular variant of papillary thyroid carcinoma. Ninety-four cases of encapsulated follicular variant of papillary thyroid carcinoma were identified in a review of all thyroid gland surgeries performed in 2002 within the Southern California Permanente Medical Group. All histology slides were reviewed and follow-up obtained. Seventy-five women and nineteen men, aged 20-80 years (mean 45.6 years), had a single (n=61), multiple (same lobe; n=20), or bilateral (n=13) tumor(s), ranging in size from 0.7 to 9.5 cm in diameter (mean 3.3 cm). Histologically, all cases demonstrated a well-formed tumor capsule, with capsular and/or lymphovascular invasion in 17 and no invasion in 77 cases. Lymph node metastases were not identified. The tumors had a follicular architecture, without necrosis or >3 mitoses/10 high-power fields (HPFs). Classical papillary thyroid carcinoma nuclear features were seen in at least three HPFs per 3 mm of tumor diameter, including enlarged, elongated, crowded, and overlapping nuclei, irregular nuclear contours, nuclear grooves, and nuclear chromatin clearing. Lobectomy alone (n=41), thyroidectomy alone (n=34), or completion thyroidectomy (n=19) was the initial treatment combined with post-op radioablative iodine in 25 patients. All patients were without evidence of disease after a median follow-up of 11.8 years. Encapsulated follicular variant of papillary thyroid carcinoma showed benign behavior, supporting conservative surgery alone and reclassification of these tumors to Noninvasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features (NIFTP).
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Mehrzad R, Nishino M, Connolly J, Wang H, Mowschenson P, Hasselgren PO. The relationship between the follicular variant of papillary thyroid cancer and follicular adenomas. Surgery 2016; 159:1396-406. [DOI: 10.1016/j.surg.2015.11.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 11/19/2015] [Accepted: 11/27/2015] [Indexed: 10/22/2022]
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