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Li CY, Salihoglu S, Civantos FJ, Velez Torres JM. Exploring cytologic features and potential diagnostic challenges of metastatic NUT carcinoma to the parotid gland: A case report and a comprehensive literature review. Diagn Cytopathol 2024; 52:E176-E186. [PMID: 38655736 DOI: 10.1002/dc.25335] [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: 02/11/2024] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024]
Abstract
NUT carcinoma (NC) is a highly aggressive, poorly differentiated carcinoma that harbors a t(15:19) translocation, leading to the fusion of the NUTM1 gene. While the upper aerodigestive tract along the midline (head, neck, thorax, and mediastinum) is commonly reported as the primary site of NC, subsequent cases have emerged in diverse locations. Achieving a definitive diagnosis based solely on morphology is challenging; however, it can be achieved using immunohistochemistry (IHC) specific to the NUT antibody or by demonstrating the characteristic BRD4::NUTM1 fusion. Accurate and timely diagnosis can potentially inform patient management and guide treatment. While histologic documentation of NC is commonly found, there is a limited description of its cytologic features. A 39-year-old male with a history of sinonasal squamous cell carcinoma (SCC) presented with a right parotid mass aspirated via fine needle aspiration cytology (FNA). Histologic examination of the previous sinonasal pathology reviewed at our institution revealed sheets of primitive-appearing, monotonous, undifferentiated cells with distinct, prominent nucleoli. Additionally, there were foci of abrupt keratinization, accompanied by a notable neutrophilic infiltrate. The initial diagnosis of SCC was reclassified to NC and confirmed through NUT IHC and molecular testing. Although the parotid FNA initially suggested the possibility of a variety of small round blue cell tumors, it exhibited morphological similarities to the sinonasal tumor, leading to the diagnosis of metastatic NC. Cytomorphologic features of NC are limited and can overlap with various small round blue cell tumors. Correct classification is especially pivotal in the era of targeted therapy, considering the ongoing development and evaluation of BET inhibitors targeting BRD4.
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Affiliation(s)
- Crystal Y Li
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Salih Salihoglu
- Department of Industrial and Systems Engineering, University of Miami College of Engineering, Miami, Florida, USA
| | - Francisco J Civantos
- Department of Otolaryngology - Head and Neck Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Jaylou M Velez Torres
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine, Miami, Florida, USA
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Carillo AM, De Luca C, Pisapia P, Vigliar E, Ikenberg K, Freiberger SN, Troncone G, Rupp NJ, Bellevicine C. Molecular testing in salivary gland cytopathology: A practical overview in conjunction with the Milan system. Cytopathology 2024; 35:330-343. [PMID: 38308401 DOI: 10.1111/cyt.13363] [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: 06/20/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
Recently, significant advances in the molecular characterization of salivary gland neoplasms have facilitated the classification and diagnosis of specific diagnostic entities. In the highly challenging diagnostic scenario of salivary malignancies, molecular testing is increasingly being adopted in routine practice to refine the cytological diagnosis of salivary lesions. Here, we reviewed the most recent evidence in the field of salivary glands molecular cytopathology.
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Affiliation(s)
- Anna Maria Carillo
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Caterina De Luca
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Pasquale Pisapia
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Elena Vigliar
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Kristian Ikenberg
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Sandra N Freiberger
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Giancarlo Troncone
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Niels J Rupp
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Claudio Bellevicine
- Department of Public Health, University of Naples Federico II, Naples, Italy
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Zilla ML, Lajara S. A case of fine-needle aspiration of a neck mass with atypical squamous cells and macrophages. Diagn Cytopathol 2024. [PMID: 38676304 DOI: 10.1002/dc.25326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024]
Abstract
Head and neck lesions often undergo fine-needle aspiration to determine the appropriate management and therapeutic decisions. However, there are numerous diagnostic challenges encountered with these specimens, particularly, if atypical squamous cells are identified. Here, we present a case of an enlarging right neck mass in a 38-year-old female and discuss the diagnostic difficulties and potential pitfalls. Additionally, we review the approach to diagnosis, including differential diagnostic considerations as well as available ancillary testing.
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Affiliation(s)
- Megan L Zilla
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Sigfred Lajara
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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Garg K, Kapila S, Gulati A, Azad RK, Thakur JS. Sonographic and Cytological Evaluation of Salivary Gland Tumors. Indian J Otolaryngol Head Neck Surg 2023; 75:3427-3431. [PMID: 37974681 PMCID: PMC10646000 DOI: 10.1007/s12070-023-04020-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 06/23/2023] [Indexed: 11/19/2023] Open
Abstract
INTRODUCTION Salivary gland tumours are relatively uncommon, but they have a multifaceted clinical presentation and varied morphological configuration. The investigations required for these tumours remain debatable. We conducted a study to determine the accuracy of various modalities used in salivary gland tumours. METHODS We enrolled 72 subjects, consisting of 44 females and 28 males, with a mean age of 40.93 ± 16.51 years (range: 15 to 79 years), suffering from various salivary gland tumours. The tumour distribution included 42 parotid gland tumours (58.33%), followed by 21 submandibular gland tumours (29.16%), three sublingual gland tumours (4.16%), and six minor salivary gland tumours (8.33%). These individuals were subjected to clinical examination, sonography, and fine needle aspiration cytology as per indications. The results of each modality were compared to surgical pathology to find sensitivity and accuracy. RESULTS The clinical examination was found to be least sensitive (83.8%) as compared to FNAC (97.6%), and ultrasound (100%). Ultrasound had the highest diagnostic accuracy (86.2%) as compared to clinical examination (80.6%) and FNAC (82.6%). CONCLUSION Although sonography was found to have the highest sensitivity and accuracy as compared to fine needle aspiration cytology and clinical examination, the difference was subtle, as both sonography and fine needle aspiration cytology had a statistically significant correlation with histopathology.
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Affiliation(s)
- Komal Garg
- Dept of Otolaryngology-Head and Neck Surgery (ENT), Indira Gandhi Medical College, Shimla, HP.171001 India
| | - Sumala Kapila
- Dept of Radiodiagnosis, Indira Gandhi Medical College, Shimla, HP.171001 India
| | - Anchana Gulati
- Dept of Pathology, Indira Gandhi Medical College, Shimla, HP.171001 India
| | - Ramesh K Azad
- Dept of Otolaryngology-Head and Neck Surgery (ENT), Indira Gandhi Medical College, Shimla, HP.171001 India
| | - Jagdeep S Thakur
- Dept of Otolaryngology-Head and Neck Surgery (ENT), Indira Gandhi Medical College, Shimla, HP.171001 India
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Saoud C, Lam H, Gross JM, Ali SZ. Fine needle aspiration of bone lesions: A tertiary care centre experience. Cytopathology 2023; 34:562-572. [PMID: 37434498 DOI: 10.1111/cyt.13270] [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: 02/22/2023] [Revised: 05/18/2023] [Accepted: 06/27/2023] [Indexed: 07/13/2023]
Abstract
BACKGROUND Bone fine needle aspiration (FNA) presents several diagnostic challenges including limited sample material, reduced ability to assess the architecture, and lack of a standardised reporting system. The aim of our study is to present our experience regarding bone FNA. METHODS We performed a 6-year retrospective search of our archives to identify all FNA cases of bone lesions. Available data regarding patients' demographics, cytopathology, and surgical pathology were recorded. The FNA cases were then grouped into five categories (atypical, neoplasm-benign, neoplasm of unknown malignant potential, suspicious for malignancy, and malignant) and the risk of malignancy (ROM) was calculated. RESULTS A total of 341 FNA cases performed in 337 patients (M = 173, F = 164; mean age = 57.2 years) were identified. The iliac crest was the most commonly biopsied site (n = 134). The adequacy of bone FNA was 77.4%. The sensitivity and specificity regarding the nature of the lesion were 96.5% and 100%, respectively. The overall diagnostic accuracy of bone FNA was 77%. The accuracy of bone FNA for non-metastatic bone lesions including non-neoplastic lesions was 74%, while the diagnostic accuracy of bone FNA for a metastatic disease was 83.5%. The diagnostic accuracy for primary neoplastic lesions was 70%. The frequency (n,%) of cytomorphological categories were as follows: atypical (30, 8.8%); neoplasm-benign (6, 1.8%); neoplasm of unknown malignant potential (18, 5.3%); suspicious for malignancy (4, 1.2%); and malignant (145, 42.5%). The ROM in these categories was respectively as follows: 51.7%, 0%, 46.7%, 100%, and 99.1%. CONCLUSION FNA is a sensitive and specific technique for the diagnosis of bone lesions. In most instances, an accurate diagnosis can be achieved if adequate material, ancillary studies, and radiological correlation are available.
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Affiliation(s)
- Carla Saoud
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Hansen Lam
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - John M Gross
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Syed Z Ali
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Zhou B, Duan T, Liu X, Peng L. A cytodiagnosis of adenoid cystic carcinoma of the tracheobronchial tree through a systematic clinical case comparison and analysis. BMC Pulm Med 2023; 23:334. [PMID: 37684618 PMCID: PMC10492350 DOI: 10.1186/s12890-023-02628-9] [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: 05/18/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Primary adenoid cystic carcinoma (AdCC) of the tracheobronchial tree is very rare with a high risk for recurrence and metastasis. The diagnosis of AdCC by histologic and immunohistochemical means has been well studied clinically. However, the identification of AdCC by cytologic features remains elusive due to the atypical features the cancer presents. This study aimed to describe the cytologic features of AdCC by using bronchial brushing, which could aid in distinguishing AdCC from other pulmonary carcinomas. METHODS The cytopathological features of bronchial brushing smears collected from seven cases were histologically diagnosed as AdCC. The defined cytologic features, which could potentially be diagnostic, were systemically analyzed. RESULTS Four out of the seven cytologic cases were inconcordance with the histologic diagnosis and cytologically classified as positive for malignant cells, small cell carcinoma, or atypical cells. Three cases showed a characteristic adenoid structure and magenta stroma forming globule, which was distinguished from the four cases. Cytologically, the above mentioned three cases were uniform with relatively small bland nuclei and little cytoplasm. In this study, only one case showed atypical polygonal medium-sized cells with conspicuous nucleoli. CONCLUSIONS Unlike fine-needle aspiration cytology, magenta stroma globules might offer an alternate clue for cytodiagnosis of AdCC clinically. Bronchial brushings cytology was more present in bland uniform cells with high nuclear to cytoplasmic ratios and background mucoid substance. More cases should be collected and confirmed using histopathology with careful film reading to reduce the rate of misdiagnosis.
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Affiliation(s)
- Bing Zhou
- Department of Pathology, The Second Affiliated Hospital of Jiujiang University, Jiujiang, Jiangxi, 332005, China
| | - Ting Duan
- Department of Pathology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, 314408, China
| | - Xianwei Liu
- Department of General Surgery, Jiujiang No.1 People's Hospital, Jiujiang, Jiangxi, 332000, China
| | - Lizi Peng
- Department of Pathology, Jiujiang No.1 People's Hospital, 48#, Taling Road, Jiujiang, Jiangxi, 332000, China.
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Saoud C, Schowinsky J, Ali SZ. Myxoid Soft Tissue Tumors: A 20-Year Experience on Fine Needle Aspiration with Application of the Proposed WHO Reporting System for Soft Tissue Cytopathology. Acta Cytol 2023; 67:468-481. [PMID: 37231794 DOI: 10.1159/000531051] [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: 04/13/2023] [Accepted: 05/08/2023] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Myxoid soft tissue tumors represent a heterogenous group of neoplasms. The study presented our experience on cytopathology of myxoid soft tissue tumors on fine needle aspiration (FNA) and aimed to apply the recently proposed WHO system for reporting soft tissue cytopathology. MATERIAL AND METHODS We performed a 20-year retrospective search of our archives to identify all FNAs performed on myxoid soft tissue lesions. All cases were reviewed, and the WHO reporting system was applied. RESULTS 129 FNAs performed in 121 patients (62 males; 59 females) showed a prominent myxoid component, accounting for 2.4% of all soft tissue FNAs. The FNAs were performed on 111 (86.7%) primary tumors, 17 (13.2%) recurrent tumors, and one (0.8%) metastatic lesion. A spectrum of non-neoplastic and neoplastic lesions including both benign and malignant neoplasms was identified. Overall, the most common tumors identified were myxoid liposarcoma (27.1%), intramuscular myxoma (15.5%), and myxofibrosarcoma (13.1%). The sensitivity and specificity of FNA regarding the nature of the lesion (benign vs. malignant) were 98% and 100%, respectively. When the WHO reporting system was applied, the frequency of the categories was as follows: benign (7.8%), atypical (34.1%), soft tissue neoplasm of uncertain malignant potential (18.6%), suspicious for malignancy (3.1%), and malignant (36.4%). The risk of malignancy calculated in each category was as follows: benign (10%), atypical (31.8%), soft tissue neoplasm of uncertain malignant potential (50%), suspicious for malignancy (100%), and malignant (100%). CONCLUSION A diverse group of non-neoplastic and neoplastic lesions can show a prominent myxoid component on FNA. The WHO reporting system for soft tissue cytopathology is easily applicable and appears to correlate well with the malignant potential of myxoid tumors.
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Affiliation(s)
- Carla Saoud
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA,
| | - Jeffrey Schowinsky
- Department of Pathology, University of Colorado Hospital, Aurora, Colorado, USA
| | - Syed Z Ali
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Ratzon F, Feliciano DL, Katabi N, Xu B, Lin O, Wei XJ. Salivary gland fine-needle aspiration biopsy: quality assurance results from a tertiary cancer center. J Am Soc Cytopathol 2023; 12:206-215. [PMID: 36792408 PMCID: PMC10563449 DOI: 10.1016/j.jasc.2023.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/13/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Fine-needle aspiration biopsy (FNAB) plays a critical role in the management of patients with salivary gland lesions. A specific diagnosis can be difficult due to the wide range of lesions with overlapping morphologic features, potentially leading to interpretation errors. We analyzed the cytologic-histologic discrepancies identified in the quality assurance program of a major cancer center in cases of salivary gland FNAB and performed a root cause analysis. MATERIALS AND METHODS Salivary gland FNAB specimens performed during a 12-year period at a major tertiary cancer center were reviewed. The inclusion criteria for this study included FNAB cases of salivary glands with subsequent histologic or flow cytometry follow up. The cytologic diagnoses for these cases were recategorized according to the Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) based on the original reports. The risk of neoplasm and malignancy based on the cases with subsequent resection or flow cytometry and the most common causes of discrepancy were analyzed. RESULTS The risk of neoplasm ranged from 41% to 99% and the risk of malignancy ranged from 22% to 99% among the different MSRSGC categories. Lymphoid and myoepithelial rich lesions were the most common miscategorized lesions using the MSRSGC. Reactive changes due to inflammation were associated with overcalls. The most common malignancy in the atypical category was mucoepidermoid carcinomas. CONCLUSIONS Myoepithelial and lymphoid rich lesions arising in the salivary gland are associated with a higher risk of misclassification. The use of category IVB in the MSRSGC is appropriate for lesions with abundant myoepithelial cells. Reactive atypia seen in sialadenitis was the most common feature associated with overcall.
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Affiliation(s)
- Fanni Ratzon
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | | | - Nora Katabi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Bin Xu
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Oscar Lin
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York.
| | - Xiao-Jun Wei
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
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Ribeiro EA, Maleki Z. Cystic Salivary Gland Neoplasms: Diagnostic Approach With a Focus on Ancillary Studies. Adv Anat Pathol 2022; 29:365-372. [PMID: 36044380 DOI: 10.1097/pap.0000000000000361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Cystic salivary gland cytology can be challenging due to the fact that a cystic mass can be the clinical presentation of both non-neoplastic and neoplastic conditions. Neoplastic lesions consist of both benign and malignant neoplasms. The cytomorphologic features of these entities can overlap and the cystic background may additionally contribute to the complexity of these lesions and their interpretation. Ancillary studies have been reported in several studies to be beneficial in further characterization of the cellular components and subsequent diagnosis of the cystic lesions of the salivary gland. Fluorescence in situ hybridization, real-time polymerase chain reaction, and next-generation sequencing are now being utilized to detect molecular alterations in salivary gland neoplasms. MALM2 rearrangement is the most common gene fusion in mucoepidermoid carcinoma. PLAG1 rearrangement is present in more than half of pleomorphic adenomas. AKT1:E17K mutation is the key diagnostic feature of the mucinous adenocarcinoma. NR4A3 overexpression is highly sensitive and specific for the diagnosis of acinic cell carcinoma. MYB fusion is noted in adenoid cystic carcinoma. ETV6:NTRK3 fusion is helpful in diagnosis of secretory carcinoma. p16 and human papillomavirus (HPV) studies differentiate HPV-related squamous cell carcinoma from non-HPV-related neoplasms with overlapping features. NCOA4:RET fusion protein is the main fusion in intraductal carcinoma.
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Affiliation(s)
- Efrain A Ribeiro
- Department of Pathology, The Johns Hopkins University School of Medicine and The Johns Hopkins Hospital, Baltimore, MD
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10
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Torous VF, Faquin WC. The Milan System classification of Warthin tumor: A large institutional study of 124 cases highlighting cytologic features that limit definitive interpretation. Cancer Cytopathol 2022; 130:714-725. [PMID: 35617489 DOI: 10.1002/cncy.22588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 03/28/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Fine-needle aspiration (FNA) is highly accurate for the diagnosis of Warthin tumor (WT). However, there is a minor subset of WT cases that are more challenging to interpret. The goal of this study is to identify factors that limit definitive diagnosis of WT on FNA. METHODS All WT surgical specimens diagnosed during a 6.5-year study period were retrospectively identified and the preceding cytologic specimen diagnostic categories were analyzed. Of particular interest were WT cases with indeterminate or malignant interpretations. Cases that noted squamous or mucinous change in either the surgical or cytologic reports were also reviewed. RESULTS A total of 157 WT surgical specimens were identified, with 124 (79.0%) having prior FNAs. The distribution of cytologic diagnostic categories was 12 (9.7%) nondiagnostic, 10 (8.1%) nonneoplastic, 13 (10.5%) atypia of undetermined significance (AUS), 82 (66.1%) neoplasm: benign, 4 (3.2%) salivary gland neoplasm of uncertain malignant potential (SUMP), 2 (1.6%) suspicious for malignancy, and 1 (0.8%) malignant. Of the 20 cases in indeterminate/malignant categories, a majority noted either squamoid (9 of 20) or mucinous (2 of 20) changes. The remainder noted scant cellularity as a limiting factor to interpretation. Additionally, 27 cases mentioned squamous or mucinous change in the surgical or cytology report, with a wide spectrum of cytologic categorization including 2 (7.4%) nondiagnostic, 2 (7.4%) nonneoplastic, 7 (25.9%) AUS, 8 (29.6%) neoplasm: benign, 4 (14.8%) SUMP, 2 (7.4%) suspicious for malignancy, and 1 (3.7%) malignant. CONCLUSIONS This study identified 2 key causes for indeterminate or misclassification of WT on FNA: specimen hypocellularity and metaplastic changes. Recognition of the potential for squamous and mucinous metaplastic changes combined with observance of some helpful diagnostic clues such as the presence of crystalloids may aid in preventing diagnostic pitfalls.
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Affiliation(s)
- Vanda F Torous
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - William C Faquin
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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Wakely PE. Salivary duct carcinoma: A report of 70 FNA cases and review of the literature. Cancer Cytopathol 2022; 130:595-608. [PMID: 35255198 DOI: 10.1002/cncy.22568] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/22/2022] [Accepted: 02/15/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Although usually recognized as malignant, fine-needle aspiration (FNA) biopsy of salivary duct carcinoma (SDC) has been confused with other primary salivary gland (SG) neoplasms. This article undertook an analysis of a large collection of SDC FNA cases to assess diagnostic accuracy, specificity, and cytopathology. METHODS Cytopathology files were searched for SDC with histopathologic validation. FNA biopsy smears were performed using standard techniques. RESULTS Seventy cases from 56 patients (M:F, 1.9:1; age range, 26-92 years; mean age, 65 years) met inclusion criteria. All had tissue confirmation of SDC. FNA sites included: parotid gland (42, 60% cases), neck (10), submandibular gland (7), pre-/post-auricular area (5), face/cheek (3), mediastinal lymph nodes (2), and clavicle (1). Aspirates were from primary (52, 74%), metastatic (12, 17%), and locally recurrent (6, 9%) neoplasms. FNA diagnoses included: SDC (19, 27%), favor/suspicious for SDC (7, 10%), high-grade carcinoma (11), adenocarcinoma (9), carcinoma (6), malignant (6), SG neoplasm (5), atypia (3), SDC versus another malignancy (2), and pleomorphic adenoma (2). Large polygonal cells in groups and single forms showed cribriforming, variable necrosis, pseudopapillae, and oncocytic change. Androgen receptor staining was positive in all cases. CONCLUSIONS FNA biopsy is accurate and reliable in classifying SDC as a malignant neoplasm, but much less so for identification as a specific tumor type. Using the Milan system, 86% of aspirates were classified as either malignant or suspicious for malignancy. A recurring pitfall includes sampling error in cases of SDC ex pleomorphic adenoma.
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Affiliation(s)
- Paul E Wakely
- Department of Pathology, The Ohio State University Wexner Medical Center, James Cancer Hospital and Solove Research Institute, Columbus, Ohio
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12
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Tabibi S, Gabrielson M, Saoud C, Davis K, Wangsiricharoen S, Lu R, Tondi Resta I, Viswanathan K, Faquin WC, Baloch Z, Maleki Z. Ancillary studies on cell blocks from fine needle aspiration specimens of salivary gland lesions: A multi‐institutional study. Diagn Cytopathol 2022; 50:235-252. [PMID: 35092649 PMCID: PMC9303557 DOI: 10.1002/dc.24939] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 01/03/2022] [Accepted: 01/21/2022] [Indexed: 12/11/2022]
Abstract
Background Ancillary studies are commonly performed on cell blocks prepared from fine‐needle aspiration (FNA) specimens. There are limited studies in application of ancillary studies on cell blocks from salivary gland (SG) FNAs. This multi‐institutional study evaluates the role of ancillary studies performed on cell blocks in the diagnosis of SG lesions, and their impact on clinical management. Method The electronic pathology archives of three large academic institutions were searched for SG FNAs with ancillary studies performed on cell blocks. The patient demographics, FNA site, cytologic diagnosis, ancillary studies, and surgical follow‐up were recorded. If needed, the cytologic diagnoses were reclassified as per the Milan System for Reporting Salivary Gland Cytopathology (MSRSGC). Results 117 SG FNA cases were identified including 3, 10, 11, 6, 23, 4, and 60 cases in MSRSGC categories I, II, III, IVa, IVb, V, VI, respectively with surgical follow‐up available ranging from 27% to 100% within each category. Ancillary studies including histochemistry, immunocytochemistry (IHC), and in situ hybridization (ISH) were beneficial in 60%–100% of cases in each category. Risk of malignancy was 100% in both the suspicious for malignancy (V) and malignant (VI) categories. Ancillary studies improved diagnosis in 60% of non‐neoplastic cases (II, 6/10), 100% of benign neoplasm cases (IVa, 6/6), and 98.3% of malignant cases (VI, 59/60). Conclusion Judicious and case‐based ancillary studies performed on SG FNA cell blocks with sufficient material can improve the diagnostic yield by further characterization of the atypical/neoplastic cells, particularly in MSRSGC categories IVa‐VI.
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Affiliation(s)
- Seena Tabibi
- Department of PathologyThe Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Matthew Gabrielson
- Department of PathologyThe Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Carla Saoud
- Department of PathologyThe Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Katelynn Davis
- Department of PathologyThe Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | | | - Ryan Lu
- Department of PathologyThe Johns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Isabella Tondi Resta
- Department of Pathology and Laboratory Medicine, Hospital of the University of PennsylvaniaUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Kartik Viswanathan
- Department of PathologyEmory University Hospital MidtownAtlantaGeorgiaUSA
| | - William C. Faquin
- Department of PathologyMassachusetts General Hospital and Harvard Medical SchoolBostonMassachusettsUSA
| | - Zubair Baloch
- Department of Pathology and Laboratory Medicine, Hospital of the University of PennsylvaniaUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Zahra Maleki
- Department of PathologyThe Johns Hopkins University School of MedicineBaltimoreMarylandUSA
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Maleki Z, Saoud C, Viswanathan K, Kilic I, Tommola E, Griffin DT, Heider A, Petrone G, Jo VY, Centeno BA, Saieg M, Mikou P, Fadda G, Ali SZ, Kholová I, Wojcik EM, Barkan GA, Eisele DW, Bellevicine C, Vigliar E, Wiles AB, Al-Ibraheemi A, Allison DB, Dixon GR, Chandra A, Walsh JM, Baloch ZW, Faquin WC, Krane JF, Rossi ED, Pantanowitz L, Troncone G, Callegari FM, Klijanienko J. Application of the Milan System for Reporting Salivary Gland Cytopathology in pediatric patients: An international, multi-institutional study. Cancer Cytopathol 2022; 130:370-380. [PMID: 35081269 DOI: 10.1002/cncy.22556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/06/2021] [Accepted: 12/13/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Pediatric salivary gland fine-needle aspiration (FNA) is uncommon with a higher frequency of inflammatory lesions and a small proportion of malignancies. This international, multi-institutional cohort evaluated the application of the Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) and the risk of malignancy (ROM) for each diagnostic category. METHODS Pediatric (0- to 21-year-old) salivary gland FNA specimens from 22 international institutions of 7 countries, including the United States, England, Italy, Greece, Finland, Brazil, and France, were retrospectively assigned to an MSRSGC diagnostic category as follows: nondiagnostic, nonneoplastic, atypia of undetermined significance (AUS), benign neoplasm, salivary gland neoplasm of uncertain malignant potential (SUMP), suspicious for malignancy (SM), or malignant. Cytology-histology correlation was performed where available, and the ROM was calculated for each MSRSGC diagnostic category. RESULTS The cohort of 477 aspirates was reclassified according to the MSRSGC as follows: nondiagnostic, 10.3%; nonneoplastic, 34.6%; AUS, 5.2%; benign neoplasm, 27.5%; SUMP, 7.5%; SM, 2.5%; and malignant, 12.4%. Histopathologic follow-up was available for 237 cases (49.7%). The ROMs were as follows: nondiagnostic, 5.9%; nonneoplastic, 9.1%; AUS, 35.7%; benign neoplasm, 3.3%; SUMP, 31.8%; SM, 100%; and malignant, 100%. Mucoepidermoid carcinoma was the most common malignancy (18 of 237; 7.6%), and it was followed by acinic cell carcinoma (16 of 237; 6.8%). Pleomorphic adenoma was the most common benign neoplasm (95 of 237; 40.1%). CONCLUSIONS The MSRSGC can be reliably applied to pediatric salivary gland FNA. The ROM of each MSRSGC category in pediatric salivary gland FNA is relatively similar to the ROM of each category in adult salivary gland FNA, although the reported rates for the different MSRSGC categories are variable across institutions.
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Affiliation(s)
- Zahra Maleki
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Carla Saoud
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Kartik Viswanathan
- Department of Pathology, Emory University Hospital Midtown, Atlanta, Georgia
| | - Irem Kilic
- Department of Pathology, Loyola University Medical Center, Maywood, Illinois
| | - Erkka Tommola
- Fimlab Laboratories, Tampere, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Daniel T Griffin
- Department of Pathology, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Amer Heider
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
| | - Gianluigi Petrone
- Department of Pathology, Catholic University of Sacred Heart University, Rome, Italy
| | - Vickie Y Jo
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | | | - Mauro Saieg
- Department of Pathology, A. C. Camargo Cancer Center, São Paulo, Brazil
| | | | - Guido Fadda
- Department of Pathology, University of Messina, Messina, Italy
| | - Syed Z Ali
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Ivana Kholová
- Fimlab Laboratories, Tampere, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Eva M Wojcik
- Department of Pathology, Loyola University Medical Center, Maywood, Illinois
| | - Güliz A Barkan
- Department of Pathology, Loyola University Medical Center, Maywood, Illinois
| | - David W Eisele
- Department of Otolaryngology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Claudio Bellevicine
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Elena Vigliar
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Austin B Wiles
- Department of Pathology, Virginia Commonwealth University Health System, Richmond, Virginia
| | - Alyaa Al-Ibraheemi
- Department of Pathology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Derek B Allison
- Department of Pathology, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Glen R Dixon
- HCA Laboratories, HCA Healthcare, London, United Kingdom
| | - Ashish Chandra
- Department of Pathology, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, United Kingdom
| | - Jonathan M Walsh
- Department of Otolaryngology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Zubair W Baloch
- Department of Pathology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - William C Faquin
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts
| | - Jeffrey F Krane
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Esther Diana Rossi
- Department of Pathology, Catholic University of Sacred Heart University, Rome, Italy
| | - Liron Pantanowitz
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
| | - Giancarlo Troncone
- Department of Public Health, University of Naples Federico II, Naples, Italy
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Chandra P, Shelly D, Mishra PS, Nichat P, Das AK. Uncommon diagnostic pitfalls of mucoepidermoid carcinoma on cytology: A tertiary care center, retrospective descriptive study. JOURNAL OF MARINE MEDICAL SOCIETY 2022. [DOI: 10.4103/jmms.jmms_43_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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15
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Chowdhury Z, Raphael V, Khonglah Y, Mishra J, Marbaniang E, Dey B. Mélange of Lymphoepithelial Lesions of Salivary Glands from a Tertiary Care Center of North East India: Diagnostic Conundrums. J Lab Physicians 2021; 13:338-345. [PMID: 34975253 PMCID: PMC8714313 DOI: 10.1055/s-0041-1731973] [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] [Indexed: 11/25/2022] Open
Abstract
Background
Lymphocytic infiltrates of the major salivary glands are involved in a spectrum of diseases that range from reactive to benign and malignant neoplasms. Occasionally, these pathologic entities present difficulties in the clinical and pathological diagnosis.
Aim and Objective
The aim of this study was to highlight the importance of meticulous cytopathological and histopathological examination (HPE) in solving the diagnostic challenges encountered in the analysis of these salivary gland lesions.
Materials and Methods
A retrospective analysis of salivary gland lesions was undertaken over a period of 5 years from 2013 to 2018 in the Department of Pathology at our institute. Salivary gland pathologies diagnosed either as chronic sialadenitis or reactive/benign/malignant lymphoepithelial lesions on fine-needle aspiration cytology (FNAC) and as lymphoepithelial carcinoma (LEC) were included in this study.
Results
A total of 86 cases of salivary gland lesions diagnosed as mentioned above were found during this period. Out of the 86 cases, 16 were subjected to HPE. Biopsy was not warranted in most of the cases diagnosed as chronic sialadenitis. HPE was concordant with the FNAC diagnoses in 13 out of the 16 cases (81.3%), with a single case misinterpreted as LEC on FNAC.
Conclusion
Benign and malignant lymphoepithelial lesions of salivary glands may sometimes be difficult to differentiate not only from one another on FNAC but also from other malignant lesions. FNAC is an effective tool for the diagnosis of nonneoplastic lesions, but in cases of benign lymphoepithelial lesions in the absence of salivary acini, biopsy is advisable.
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Affiliation(s)
- Zachariah Chowdhury
- Department of Pathology, Mahamana Pandit Madan Mohan Malaviya Cancer Centre and Homi Bhabha Cancer Hospital (Tata Memorial Hospital), Varanasi, Uttar Pradesh, India
| | - Vandana Raphael
- Department of Pathology, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences, Shillong, Meghalaya, India
| | - Yookarin Khonglah
- Department of Pathology, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences, Shillong, Meghalaya, India
| | - Jaya Mishra
- Department of Pathology, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences, Shillong, Meghalaya, India
| | - Evarisalin Marbaniang
- Department of Pathology, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences, Shillong, Meghalaya, India
| | - Biswajit Dey
- Department of Pathology, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences, Shillong, Meghalaya, India
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Sučić M, Ljubić N, Perković L, Ivanović D, Pažanin L, Sučić Radovanović T, Župnić-Krmek D, Knežević F. Cytopathology and diagnostics of Warthin's tumour. Cytopathology 2021; 31:193-207. [PMID: 32259367 DOI: 10.1111/cyt.12830] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/25/2020] [Accepted: 03/29/2020] [Indexed: 12/17/2022]
Abstract
Warthin's tumour (WT) is a benign epithelial salivary tumour, one type of salivary adenoma. Histologically, WT is structured of two components, epithelial tissue that often lines cystic formations and lymphoid tissue in the tumour stroma. FNA is a reliable diagnostic approach in the diagnosis of salivary gland lesions allowing a highly accurate categorization of benign tumour-like lesions, benign tumours and malignant tumours. In the proposed Milan reporting system of salivary gland lesions, WT is categorized in the IVA group of benign neoplasms. Accurate cytological diagnosis is straightforward when three characteristic components are present: oncocytes, either isolated or associated in clusters, lymphocytes and lymphoid cells and often an inflammatory/necrotic-like substance. Also, specific features of scintigraphy and radiological imaging contribute to the diagnosis of WT. WT is categorized according to Seifert G. et al in 4 types, depending on the proportions of the epithelial component and lymphoid stroma. Differential cytopathological and pathohistological diagnosis include other salivary gland lesions with lymphoid, oncocytic epithelial and cystic components. In some cases, such as the metaplastic WT variant, there are additional cytopathological and histological diagnostic difficulties. Moreover, bilateral, multicentric or multiple and infrequently seen extra-salivary localizations of WT are associated with further cytopathological diagnostic difficulties. Also, a rare possibility of malignant transformation of the epithelial or lymphoid component of WT as well as possible association with other primary tumours remains a challenge in accurate cytopathological and histological diagnosis of WT.
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Affiliation(s)
- Mirna Sučić
- Division of Cytology, Department of Pathology and Cytology, Clinical Hospital "Sveti Duh", Zagreb, Croatia.,Department of Medical Biochemistry and Hematology, Faculty of Pharmacy and Biochemistry, Zagreb University, Zagreb, Croatia.,Zagreb Medical School, Zagreb University, Zagreb, Croatia
| | - Nives Ljubić
- Division of Cytology, Department of Pathology and Cytology, Clinical Hospital "Sveti Duh", Zagreb, Croatia
| | - Leila Perković
- Division of Cytology, Department of Pathology and Cytology, Clinical Hospital "Sveti Duh", Zagreb, Croatia
| | - Dunja Ivanović
- Division of Cytology, Department of Pathology and Cytology, Clinical Hospital "Sveti Duh", Zagreb, Croatia
| | - Leo Pažanin
- Ljudevit Jurak Department of Pathology and Cytology, Sestre milosrdnice University Hospital Center, Zagreb, Croatia
| | | | - Dubravka Župnić-Krmek
- Division of Haematology, Clinical Department of Internal Medicine, Clinical Hospital "Sveti Duh", Zagreb, Croatia
| | - Fabijan Knežević
- Division of Pathology, Department of Pathology and Cytology, Clinical Hospital "Sveti Duh", Zagreb, Croatia
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17
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Aksoy Altinboga A, Yildirim F, Ahsen H, Kiran MM, Kesici GG, Yuce G. The effectiveness of the Milan system for risk stratification of salivary gland lesions: The 10-year cytohistopathological correlation results of salivary gland FNA cytology at a tertiary center. Diagn Cytopathol 2021; 49:928-937. [PMID: 34009744 DOI: 10.1002/dc.24768] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 04/08/2021] [Accepted: 04/29/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND The Milan system reporting salivary gland cytopathology (MSRSGC) is a tiered classification scheme that is based on risk stratification. The aim of the current study was to assess the risk of malignancy (ROM) and risk of neoplasia (RON) in each of the diagnostic categories proposed by the MSRSGC. METHODS A retrospective analysis and categorization according to the MSRSGC was made of salivary gland fine needle aspirations (FNA) performed from January 2007 to December 2017. The FNA cytology results were correlated with subsequent histological follow-up. RESULTS A total of 578 FNAs were evaluated and histopathology was available for 198 cases (34.2%). The RON and ROM for individual diagnostic categories were: Non-diagnostic: 52.2% to 13%, non-neoplastic: 21.4% to 10.7%, atypia of undetermined significance: 74% to 22.2%, benign neoplasm: 100% to 1.1%, salivary gland neoplasm of uncertain malignant potential: 93.3% to 53.3%, suspicious for malignancy (SFM): 100% to 100%, and malignant: 100% to 100%. A diagnosis of 'SFM' or 'malignant' with FNA cytology carried a 100% risk for malignancy, while a diagnosis of "non-neoplastic," "benign neoplasm" reduced the probability of malignancy to 3.4%. CONCLUSION The MSRSGC is useful for the management of salivary gland lesions as it can successfully differentiate between benign and malignant cases. It will bring uniformity in salivary gland FNA cytology reporting across various institutions globally.
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Affiliation(s)
| | - Fatma Yildirim
- Department of Pathology, Ankara City Hospital, Ankara, Turkey
| | - Hilal Ahsen
- Department of Pathology, Ankara City Hospital, Ankara, Turkey
| | | | - Gulin Gokcen Kesici
- Department of Otolaryngology Head and Neck Surgery, Yenimahalle Education and Research Hospital, Ankara, Turkey
| | - Gokhan Yuce
- Department of Radiology, Ankara City Hospital, Ankara, Turkey
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18
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Manucha V, Gonzalez MF, Akhtar I. Analysis of the risk of malignancy associated with the basaloid and oncocytic subtypes of the salivary gland neoplasm of unknown malignant potential (SUMP) category in the Milan system. Cancer Cytopathol 2021; 129:603-611. [PMID: 33788998 DOI: 10.1002/cncy.22427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND The salivary gland neoplasm of unknown malignant potential (SUMP) category reflects the cytomorphologic overlap and complexity of reporting salivary gland cytology in the Milan system. It includes neoplasms for which a diagnosis of a specific entity cannot be made and, more importantly, for which a carcinoma cannot be entirely excluded. For risk stratification, the subcategorization of SUMP based on the predominant cell type is recommended. This study was aimed at evaluating the risk of neoplasm (RON) and the risk of malignancy (ROM) of the basaloid and oncocytic subtypes of the SUMP category. METHODS A retrospective analysis of 482 salivary gland fine-needle aspirations from 2012 to 2019 resulted in 48 SUMP cases. The cytology of these cases was reviewed and reclassified as the basaloid or oncocytic subtype. Surgical follow-up was available for 36 cases. The RON and ROM for each subtype were calculated. RESULTS The RON and ROM were 100% and 23%, respectively, for monomorphic basaloid tumors and 88% and 58.8%, respectively, for monomorphic oncocytic tumors. The ROM for basaloid tumors was 8.3% without matrix/with minimal matrix and 60% with an nonfibrillary matrix. The ROM for oncocytic tumors was 50% without a cystic background and 60% with a cystic or mucinous background. The difference was not statistically significant for either of the subgroups. CONCLUSIONS Even though statistically not significant in our study, the differential ROMs within the oncocytic and basaloid subgroups help in the risk stratification of SUMP cases. Further subcategorization based on the stroma and background helps in limiting the differential diagnosis but does not necessarily add to the value of the risk stratification.
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Affiliation(s)
- Varsha Manucha
- Department of Pathology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Maria F Gonzalez
- Department of Pathology, University of Mississippi Medical Center, Jackson, Mississippi
| | - Israh Akhtar
- Department of Pathology, University of Mississippi Medical Center, Jackson, Mississippi
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19
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Johnson DN, Antic T, Reeves W, Mueller J, Lastra RR, Cipriani NA, Biernacka A. Histopathologic and clinical outcomes of Milan System categories "non-diagnostic" and "non-neoplastic" of salivary gland fine needle aspirations. J Am Soc Cytopathol 2021; 10:349-356. [PMID: 33867311 DOI: 10.1016/j.jasc.2021.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/24/2021] [Accepted: 03/15/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION The Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) specifies six categories with estimated risks of malignancy (ROM) and suggested management. The estimated ROM is 25% for Non-Diagnostic (ND) category, and 10% for Non-Neoplastic (NN). This study aimed to investigate histopathologic and clinical outcomes of MSRSGC categories ND and NN at the authors' institution. MATERIALS AND METHODS Cytopathology fine needle aspiration reports from 2008-2020 were searched for the word "salivary", "parotid", and "submandibular". Cases fitting Non-Diagnostic (ND) and Non-Neoplastic (NN) categories were identified. Follow-up cyto-/histopathologic and clinical data were extracted. RESULTS There were 43 ND and 46 NN cases. The average age was 58.3 years. Neoplastic lesions were found in 13 of 43 (30%) ND and 3 of 46 (6.5%) NN. The rate of malignancy in ND category was 14.0% (6/43) and 0% (0/46) in NN category. Four cases in ND (9.3%) and 6 (13.0%) in NN had no neoplasm and instead had an underlying reactive condition (e.g., chronic sialadenitis) or inflammatory lesion (e.g., lymphoepithelial cyst) on histologic follow-up. There was no follow-up pathology in 46.5% NDs (20/43) and 82.6% NNs (38/46); however, no lesions were apparent clinically with a mean follow-up of 3 years and 1.5 years, respectively. CONCLUSIONS MSRSGC categories ND and NN are helpful for reporting salivary gland FNA results. With proper clinical and radiologic correlation, ROM of NN is low; however, ROM of ND remains significant. Repeat FNA after correlation for ND cases seems prudent as neoplasms and malignancies may have gone undetected.
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Affiliation(s)
- Daniel N Johnson
- Department of Pathology, Northwestern University, Chicago, Illinois.
| | - Tatjana Antic
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | - Ward Reeves
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | - Jeffrey Mueller
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | - Ricardo R Lastra
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | - Nicole A Cipriani
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | - Anna Biernacka
- Department of Pathology, The University of Chicago, Chicago, Illinois
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20
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Pastorello RG, Rodriguez EF, McCormick BA, Calsavara VF, Chen LC, Zarka MA, Schmitt AC. Is there a Role for Frozen Section Evaluation of Parotid Masses After Preoperative Cytology or Biopsy Diagnosis? Head Neck Pathol 2021; 15:859-865. [PMID: 33616853 PMCID: PMC8384938 DOI: 10.1007/s12105-021-01306-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/06/2021] [Indexed: 12/16/2022]
Abstract
Fine-needle aspiration (FNA) biopsy reliably diagnoses parotid gland lesions preoperatively, whereas intraoperative frozen section (FS) has the additional benefit of assessing surgical margins and refining diagnoses; however, the role of FS in the setting of prior FNA diagnosis is not well established. Our aim was to determine whether FS should still be performed after a prior FNA/ CNB diagnosis. Parotid gland resections from January 2009 to January 2020 were identified; however, only patients who had both FNA and FS constituted our study population. For the purpose of statistical analysis, FNA diagnoses were classified into non-diagnostic (ND), non-neoplastic (NN), benign neoplasm (BN), indeterminate, and malignant. FS diagnoses were classified into benign, indeterminate, or malignant. Resections were dichotomized into benign and malignant and regarded as the gold standard to subsequently calculate diagnostic accuracy of FNA and FS. A total of 167 parotid gland resections were identified, but only 76 patients (45.5%) had both FNA and FS. In 35 cases deemed as benign preoperatively, three (8.6%) were reclassified as malignant on FS. Out of 18 lesions reported as malignant on FNA, four (22.2%) were interpreted as benign on FS, with three of these benign lesions confirmed on permanent slides. In addition, in patients with both FNA and FS, compared to FNA, FS was able to provide a definitive diagnosis in all five ND cases and in 61.1% (11/18) of indeterminate tumors. Intraoperative assessment provided a relative increase of 33.3% in specificity and 38.5% in positive predictive value when compared to preoperative FNA. The addition of FS to FNA was helpful to further refine the diagnoses of parotid gland lesions, which may provide better guidance for surgical intervention.
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Affiliation(s)
| | | | - B. A. McCormick
- Department of Laboratory Medicine & Pathology, Mayo Clinic Arizona, 13400 E Shea Boulevard, Scottsdale, AZ 85259 USA
| | | | - L. C. Chen
- Department of Laboratory Medicine & Pathology, Mayo Clinic Arizona, 13400 E Shea Boulevard, Scottsdale, AZ 85259 USA
| | - M. A. Zarka
- Department of Laboratory Medicine & Pathology, Mayo Clinic Arizona, 13400 E Shea Boulevard, Scottsdale, AZ 85259 USA
| | - A. C. Schmitt
- Department of Laboratory Medicine & Pathology, Mayo Clinic Arizona, 13400 E Shea Boulevard, Scottsdale, AZ 85259 USA
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Archondakis S, Roma M, Kaladelfou E. Two-Year Experience of the Implementation of the Milan for Reporting Salivary Gland Cytopathology at a Private Medical Laboratory. Head Neck Pathol 2021; 15:780-786. [PMID: 33459992 PMCID: PMC8384965 DOI: 10.1007/s12105-020-01278-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 12/15/2020] [Indexed: 11/24/2022]
Abstract
This study aimed to present the 2-year experience of the implementation of the Milan System for Reporting Salivary Gland Cytopathology at Alpha Prolipsis Medical Laboratories, a private medical laboratory located in Athens, Greece. A totaI of 102 Fine Needle Aspirations (FNAs) performed since 2018 were included in the study. Reports were issued according to the Milan System for Reporting Salivary Gland Cytopathology. Aspirates were prepared with both conventional and liquid-based cytological methods and were evaluated by two or three Board-certified cytopathologists. Diagnostic reproducibility and accuracy were evaluated. All cases included in this study had histologic follow-up. The diagnostic accuracy of FNA for differentiating between benign and malignant disease according to MSRSGC classification was 93.3%, the specificity was 97.5% and the sensitivity was 82.2%. The positive and negative predictive values were 93.2 and 87.2%, respectively. Our results show that FNA is a valuable examination technique in the preoperative evaluation of salivary gland lesions. The integration of the 2018 Milan System for Reporting Salivary Gland Cytopathology is effective, with an overall accuracy around 95%.
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Affiliation(s)
- Stavros Archondakis
- Department of Cytopathology, Alpha Prolipsis Medical Laboratories, 163 Mesogion Street, 11526 Athens, Greece
| | - Maria Roma
- Department of Cytopathology, Alpha Prolipsis Medical Laboratories, 163 Mesogion Street, 11526 Athens, Greece
| | - Evropi Kaladelfou
- Department of Cytopathology, Alpha Prolipsis Medical Laboratories, 163 Mesogion Street, 11526 Athens, Greece
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Sukumaran R, Nayak N, Mony R. Extensive squamous metaplasia in minor salivary gland neoplasm mimicking squamous cell carcinoma: Diagnostic dilemma in aspiration cytology. CLINICAL CANCER INVESTIGATION JOURNAL 2021. [DOI: 10.4103/ccij.ccij_145_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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23
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Rammeh S, Romdhane E, Ksentini M, Belhajkacem L, Znaidi N, Riahi I, Lahiani R, Ben Salah M. Accuracy of fine-needle aspiration cytology in the diagnosis of salivary gland masses according to the Milan reporting system and to an in-house system. Diagn Cytopathol 2020; 49:528-532. [PMID: 33347730 DOI: 10.1002/dc.24682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 11/20/2020] [Accepted: 12/07/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND This study aims to assess in our institutional experience the accuracy of fine needle aspiration cytology (FNAC) in the diagnosis of salivary gland masses (SGM) according to the Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) and to an in-house system. METHODS The study included 189 FNACs conducted between January 2011 and December 2019. The FNACs, classified according to the in-house system, were reclassified according the MSRSGC. Taking histopathology as gold standard, the measures of diagnostic accuracy of FNAC were determined for suspicion for malignancy (SFM) and malignant categories. RESULTS According to the in house system, FNAC diagnoses were classified as: 23 (12.2%) non-diagnostic (ND), 23 (12.2%) non-neoplastic (NN), 119 (62.9%) benign neoplasm (BN), 10 (5.2%) indefinite neoplasm (IN), 2 (1.1%) SFM, and 12 (6.4%) malignant (M). Based on the MSRSGC, there were 3 (1.5%) cases of atypia of undetermined significance (AUS) and 7 (3.7%) neoplasms of uncertain malignant potential (SUMP). The number of ND, NN, BN, SFM, and M cases were identical in the two systems. For both systems, the sensitivity, the specificity, the positive predictive value, the negative predictive value, and the accuracy for malignancy diagnosis were 77.8%, 100%, 100%, 97.6%, and 97.8%, respectively. CONCLUSION According to the MSRGC and to our in-house reporting system, FNAC is an accurate technique for the diagnosis of malignant salivary tumors with excellent specificity and good sensitivity. However, MSRGC has the advantage of standardization of salivary gland cytology reporting.
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Affiliation(s)
- Soumaya Rammeh
- Department of Pathology, Charles Nicolle Hospital, Tunis, Tunisia
| | - Emna Romdhane
- Department of Pathology, Charles Nicolle Hospital, Tunis, Tunisia
| | - Meriem Ksentini
- Department of Pathology, Charles Nicolle Hospital, Tunis, Tunisia
| | | | - Nadia Znaidi
- Department of Pathology, Charles Nicolle Hospital, Tunis, Tunisia
| | - Ines Riahi
- Department of Otorhinolaryngology, Charles Nicolle Hospital, Tunis, Tunisia
| | - Rim Lahiani
- Department of Otorhinolaryngology, Charles Nicolle Hospital, Tunis, Tunisia
| | - Mamia Ben Salah
- Department of Otorhinolaryngology, Charles Nicolle Hospital, Tunis, Tunisia
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24
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Maleki Z, Allison DB, Butcher M, Kawamoto S, Eisele DW, Pantanowitz L. Application of the Milan System for Reporting Salivary Gland Cytopathology to cystic salivary gland lesions. Cancer Cytopathol 2020; 129:214-225. [PMID: 33002347 DOI: 10.1002/cncy.22363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/30/2020] [Accepted: 09/03/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND Cystic salivary gland lesions present diagnostic challenges on fine-needle aspiration (FNA) specimens that are related to sampling limitations and a broad differential diagnosis. This study evaluated the benefit of applying the Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) to a series of cystic salivary gland lesions. METHODS The pathology archives at the Johns Hopkins Hospital were searched to identify cystic salivary gland FNA specimens over a 19-year period (2000-2018). Patient demographics, cytomorphologic features, and clinical and surgical follow-up were recorded. The MSRSGC was applied to the cases. The risk of malignancy (ROM) and the risk of neoplasia (RON) were calculated for each category. RESULTS One hundred seventy-eight cases were identified (96 males and 82 females) with a mean age of 53 years (range, 4-90 years). After the MSRSGC was applied, there were 52 nondiagnostic cases (29.2%), 80 nonneoplastic cases (44.9%), 35 cases of atypia of undetermined significance (AUS; 19.7%), 3 benign neoplasms (1.7%), 3 salivary gland neoplasms of uncertain malignant potential (SUMP; 1.7%), 4 cases suspicious for malignancy (SFM; 2.2%), and 1 malignant case (0.6%). One hundred fifty-six of the 178 patients (87.6%) had follow-up data available. The RON and ROM values for cases with surgical follow-up were 33.3% (3 of 9) and 22.2% (2 of 9) for the nondiagnostic category, 42.9% (9 of 21) and 19% (4 of 21) for the nonneoplastic category, 76.5% (13 of 17) and 29.4% (5 of 17) for the AUS category, 100.0% (2 of 2) and 50.0% (1 of 2) for the SUMP category, and 100% (2 of 2) and 100% (2 of 2) for the SFM category, respectively. CONCLUSIONS Applying the MSRSGC to cystic salivary gland lesions improves patient management by preventing unnecessary surgery for nonneoplastic conditions. The ROM was highest in the SFM category (100%), which was followed by the SUMP, AUS, nondiagnostic, and nonneoplastic categories. Less than adequate specimens may increase the diagnosis of AUS.
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Affiliation(s)
- Zahra Maleki
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Derek B Allison
- Department of Pathology and Laboratory Medicine, University of Kentucky, Lexington, Kentucky
| | - Monica Butcher
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Satomi Kawamoto
- Department of Radiology, Johns Hopkins Hospital, Baltimore, Maryland
| | - David W Eisele
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Liron Pantanowitz
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
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Wangsiricharoen S, Maleki Z. Risk stratification and clinical outcome in the atypia of undetermined significance category in the Milan System for Reporting Salivary Gland Cytopathology. Cancer Cytopathol 2020; 129:132-139. [PMID: 32936993 DOI: 10.1002/cncy.22352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/24/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Atypia of undetermined significance (AUS) is a category of the Milan System for Reporting Salivary Gland Cytopathology that refers to salivary gland fine-needle aspiration (FNA) specimens that cannot be definitively diagnosed as neoplastic or nonneoplastic. METHODS The AUS FNA samples were selected from a large academic institution from 2008 through 2018. The AUS cases were divided into 6 subgroups. The risk of malignancy (ROM), risk of neoplasm (RON), and clinical outcomes for each subgroup were evaluated. RESULTS A total of 123 cases were found (76 males and 47 females with a mean age of 62 years [range, 6-94 years]). The parotid gland was the most common FNA site (103 cases), followed by the submandibular gland (9 cases). The overall RON and ROM were 63% and 47%, respectively. Among the subgroups, salivary gland lymph nodes or lymphoid lesions was the most common diagnosis (42%), whereas mucinous cystic lesions with no or a scant epithelial component was the least common (2%). The specimens with preparation artifacts category had the highest RON and ROM (100% for both), whereas the reactive and reparative atypia indefinite for a neoplasm category had the lowest RON and ROM (7% for both). The salivary gland lymph nodes or lymphoid lesions indefinite for a lymphoproliferative disorder category had the second highest RON and ROM at 77% and 74%, respectively. CONCLUSIONS The overall RON and ROM for the AUS category were 63% and 47%, respectively. The RON and ROM varied among the different AUS subgroups, being highest in the specimens with preparation artifacts category and lowest in the reactive and reparative atypia category, thereby demonstrating the importance of subgrouping in the AUS specimens.
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Affiliation(s)
- Sintawat Wangsiricharoen
- Division of Cytopathology, Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Zahra Maleki
- Division of Cytopathology, Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
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26
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Chowsilpa S, An D, Maleki Z. Adenoid cystic carcinoma cytology: Salivary gland and nonsalivary gland. Diagn Cytopathol 2020; 48:1282-1289. [PMID: 32809258 DOI: 10.1002/dc.24573] [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: 04/29/2020] [Revised: 07/06/2020] [Accepted: 07/17/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVES Adenoid cystic carcinoma (ACCA) is an uncommon primary malignancy of salivary glands and rarely nonsalivary tissue. This study aims to evaluate the diagnostic accuracy of ACCA on fine needle aspiration (FNA) material and the associated challenges. METHODS A search on electronic pathology database from 2006 to 2016 at The Johns Hopkins Hospital found 83 cytology specimens diagnosed as ACCA, 49 with histology follow-up. RESULTS Fifty-two females and 31 males were found ranging from 37 to 95 years old (mean 62.5). The tumor size was 1 to 11.5 cm (mean 3.4). FNAs were performed on 46 salivary glands (54.88%), 12 head and neck masses (14.45%), 9 lymph nodes (10.84%), 9 tracheas/lungs (10.84%), 4 vaginal/perineum/gluteal masses (4.82%), and one for each kidney, liver and abdominal/pelvic mass (1.21%). 83 FNA diagnoses revealed 3 nondiagnostics (3.61%), 20 neoplasms with unspecified features (24.10%), 30 basaloid neoplasms (36.14%), 18 ACCA (21.69%), and 12 other malignancies (14.46%). The accuracy of FNA in diagnosis of ACCA comparing to histologic follow-up in 49 cases was 87.5% sensitivity, 66.67% specificity, with 92.11% positive predictive value and 54.55% negative predictive value. The most common mimicker was pleomorphic adenoma. CONCLUSION ACCA can be diagnosed not only in the salivary gland FNAs, but also respiratory tract, intra-abdominal, kidney, and gynecologic regions. FNA is a preferred technique to assess mass lesions. However, a diagnosis of ACCA on FNA material should be rendered with caution since there are benign and malignant neoplasms with overlapping features. Awareness of prior medical history and ancillary studies can improve the diagnosis.
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Affiliation(s)
- Sayanan Chowsilpa
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland, USA.,Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Daniel An
- Department of Pathology, The Johns Hopkins Medical institution, Baltimore, Maryland, USA
| | - Zahra Maleki
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland, USA
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27
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Manucha V, Gonzalez MF, Akhtar I. Impact of the Milan System for Reporting Salivary Gland Cytology on risk assessment when used in routine practice in a real-time setting. J Am Soc Cytopathol 2020; 10:208-215. [PMID: 32893181 DOI: 10.1016/j.jasc.2020.08.005] [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: 07/06/2020] [Revised: 08/02/2020] [Accepted: 08/07/2020] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Several retrospective studies across the world have validated the role of the Milan System for Reporting Salivary Gland Cytology (MSRSGC) in improving communication between pathologists and clinicians. In this study, we evaluated the applications of MSRSGC in a real-time setting for 2 years. MATERIALS AND METHODS All salivary gland lesions that underwent fine-needle aspiration (FNA) from January 2018 to December 2020 were categorized according to MSRSGC guidelines. The risk of malignancy (ROM) was calculated for each category and compared with the ROM proposed by MSRSGC and recent retrospective studies. RESULTS A total of 160 FNA of salivary gland lesions were categorized as: nondiagnostic (ND) 30 (18%), non-neoplastic (NN) 7 (10.6%), atypia of undetermined significance (AUS) 5 (3.1%), benign neoplasm (BN) 59 (36.8%), salivary gland of uncertain malignant potential (SUMP) 21 (13%), suspicious for malignancy (SM) 3 (1.84%), and malignant (M) 25 (15.6%). Histopathologic follow-up was available for 94 (57.5%) cases. The ROM for each category was ND 54%, NN 0%, AUS 66%, BN 0%, SUMP 37.56%, SM 100%, and M 100%. CONCLUSION With strict adherence to the diagnostic criteria and MSRSGC guidelines, a ROM of 100% in SM and M categories and a ROM of 0% in NN can be achieved in a real-time setting. The high ROM in the ND category in our study highlights the value of repeat FNA/biopsy for this category. High ROM for AUS indicates the tendency to classify high-grade tumors as AUS, calling for refinement in its criteria.
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Affiliation(s)
- Varsha Manucha
- Department of Pathology, University of Mississippi Medical Center, Jackson, Mississippi.
| | - Maria F Gonzalez
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | - Israh Akhtar
- Department of Pathology, University of Mississippi Medical Center, Jackson, Mississippi
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28
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Allison DB, Smith AP, An D, Miller JA, Shafique K, Song S, Viswanathan K, Eykman E, Rao RA, Wiles A, Barkan GA, Nayar R, Fadda G, Powers CN, Rossi ED, Siddiqui MT, Ali SZ, Kholová I, Layfield LJ, Field A, Baloch Z, Maleki Z. Assessing the diagnostic accuracy for pleomorphic adenoma and Warthin tumor by employing the Milan System for Reporting Salivary Gland Cytopathology: An international, multi-institutional study. Cancer Cytopathol 2020; 129:43-52. [PMID: 32767837 DOI: 10.1002/cncy.22339] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/26/2020] [Accepted: 07/02/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND The Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) has established distinct diagnostic categories for reporting cytopathological findings, and each is associated with a defined risk of malignancy (ROM). However, the ROM is applied at the overall category level and is not specific for particular morphological entities within a category. Here, the diagnostic performance of the MSRSGC for pleomorphic adenoma (PA) and Warthin tumor (WT) is reported. METHODS The pathology archives of 11 institutions from 4 countries were retrospectively searched to identify all salivary gland fine-needle aspiration (FNA) biopsies with a differential or definitive diagnosis of PA or WT and all resection specimens with a diagnosis of PA or WT; only paired cases were included. All FNA diagnoses were retrospectively classified according to the MSRSGC. RESULTS A total of 1250 cases met the inclusion criteria, and they included 898 PA cases and 352 WT cases. The ROM in the benign neoplasm category was 3.0% and 1.3% for cases with a differential or definitive diagnosis of PA and WT, respectively. The ROM in the salivary gland neoplasm with uncertain malignant potential (SUMP) category was 2.7% and 18.8% for PA and WT, respectively (P = .0277). The diagnostic accuracy for PA and WT was 95.1% and 96.1%, respectively. CONCLUSIONS The diagnostic accuracy for PA and WT on FNA is high. Furthermore, these findings highlight the difference in the ROMs associated with 2 specific differential diagnoses in the SUMP category: basaloid neoplasms and oncocytoid neoplasms.
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Affiliation(s)
- Derek B Allison
- Department of Pathology and Laboratory Medicine, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Alexander P Smith
- Department of Pathology and Laboratory Medicine, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Daniel An
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland
| | - James Adam Miller
- Department of Pathology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Khurram Shafique
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Sharon Song
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kartik Viswanathan
- Department of Pathology and Laboratory Medicine, NewYork-Presbyterian, Weill Cornell Medicine, New York, New York
| | - Elizabeth Eykman
- Department of Pathology, St. Vincent Hospital, Sydney, New South Wales, Australia
| | - Rema A Rao
- Department of Pathology, Montefiore Medical Center, Bronx, New York
| | - Austin Wiles
- Department of Pathology, Virginia Commonwealth University, Richmond, Virginia
| | - Güliz A Barkan
- Department of Pathology, Loyola University Medical Center, Maywood, Illinois
| | - Ritu Nayar
- Department of Pathology, Northwestern University, Chicago, Illinois
| | - Guido Fadda
- Department of Anatomic Pathology and Histology, Agostino Gemelli School of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Celeste N Powers
- Department of Pathology, Virginia Commonwealth University, Richmond, Virginia
| | - Esther Diana Rossi
- Department of Anatomic Pathology and Histology, Agostino Gemelli School of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Momin T Siddiqui
- Department of Pathology and Laboratory Medicine, NewYork-Presbyterian, Weill Cornell Medicine, New York, New York
| | - Syed Z Ali
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Ivana Kholová
- Department of Pathology, Fimlab Laboratories, Tampere, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Lester J Layfield
- Department of Pathology, University of Missouri School of Medicine, Columbia, Missouri
| | - Andrew Field
- Department of Pathology, St. Vincent Hospital, Sydney, New South Wales, Australia
| | - Zubair Baloch
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Zahra Maleki
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland
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29
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Lee DY, Song S, Yang SK, Lee MH, Kim JE, Jung YH, Kwon TK. Prediction of Malignancy in Salivary Gland Tumors by a New Cytology Reporting System. EAR, NOSE & THROAT JOURNAL 2020; 100:NP432-NP437. [PMID: 32453644 DOI: 10.1177/0145561320927912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES The aim of this study was to analyze the risk of malignancy in salivary gland tumors on the basis of the Milan System for Reporting Salivary Gland Cytopathology. METHODS A retrospective review was performed of the charts of patients with salivary gland tumors in whom the final diagnosis was confirmed by surgical excision. Preoperative fine needle aspiration results were categorized according to the Milan System for Reporting Salivary Gland Cytopathology: non-diagnostic (category I), nonneoplastic (category II), atypia of undetermined significance (category III), neoplasm (category IV), suspicious for malignancy (category V), and malignant (category VI). Fine needle aspiration and final diagnosis were compared, and the risk of malignancy and operative/oncological outcomes were analyzed. RESULTS A total of 288 patients were enrolled in this study. Postoperative histopathologic salivary gland malignancies were found in 30 (10.4%) patients. Risk of malignancy was 7.1%, 0%, 48.0%, 4.8%, 88.7%, and 100% in categories I, II, III, IV, V, and VI, respectively. The most common malignant tumor in category III was salivary duct carcinoma (37.5%), followed by acinic cell carcinoma (25.0%), mucoepidermoid carcinoma (25.0%), and squamous cell carcinoma (12.5%). The 5-year survival rate of patients with malignant tumors showed no statistical difference between category III and category V/VI (P = .140). Risk of malignancy was 88.9% and 100% in category V and VI, respectively. CONCLUSIONS A half of atypia of undetermined significance (category III) cases were malignant. Once diagnosed, the prognosis of malignant tumor in category III was similar with that in category V/VI.
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Affiliation(s)
- Doh Young Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Boramae Medical Center, Dongjak-gu, South Korea
| | - Seulki Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Boramae Medical Center, Dongjak-gu, South Korea
| | - Seung Koo Yang
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Boramae Medical Center, Dongjak-gu, South Korea
| | - Min Hyung Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Boramae Medical Center, Dongjak-gu, South Korea
| | - Ji Eun Kim
- Department of Pathology, Seoul National University Boramae Medical Center, Dongjak-gu, South Korea
| | - Young Ho Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Gyeonggi-do, South Korea
| | - Tack-Kyun Kwon
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Boramae Medical Center, Dongjak-gu, South Korea
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30
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Goswami A, Zhang AJ, Vahidi S, Mettler T, Stewart J, Amin K. Oncocytic features in salivary duct carcinoma, a potential pitfall for misdiagnosis as Warthin tumor in fine needle aspiration specimens: A cytomorphologic analysis of 14 cases. Diagn Cytopathol 2020; 48:604-609. [PMID: 32271502 DOI: 10.1002/dc.24426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 03/16/2020] [Accepted: 03/24/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Salivary duct carcinoma (SDC) is an uncommon and highly aggressive primary salivary gland neoplasm. Cytomorphologic features of SDC include cellular smears, nuclear atypia, prominent nucleoli, cribriform and papillary architecture, and background necrosis. The presence of oncocytic features has been described but not adequately characterized in the current literature. METHOD This study cohort consisted of 14 cases of histologically proven SDC with previous salivary gland fine needle aspiration (FNA). The cytologic material of each case was semi-quantitatively analyzed and evaluated for various cytomorphologic, architectural, and background features. RESULTS Twelve SDCs were located in the parotid gland and two in the submandibular gland. In two cases the initial cytologic diagnoses was Warthin tumor or favor Warthin tumor. Moderate to marked degree of oncocytic changes were noted in all cases except one case. Nuclear atypia was variable with most cases exhibiting moderate to high-grade nuclear features, while four cases demonstrated low-grade nuclear cytomorphology. Cytoplasmic vacuolation was seen in nine cases and variable amount of background necrosis was observed in eight cases. Cribriform and papillary architecture was recognized in only six cases. Background lymphocytes were absent in all but one case. CONCLUSIONS Precise diagnosis of SDC based on cytomorphologic features alone can be challenging. Oncocytic change is one of the most consistent features observed in this case series and when associated with less pronounced cytologic atypia, can potentially lead to misdiagnosis as Warthin tumor. SDC should be considered in the differential diagnosis of oncocytic salivary gland neoplasms where precise diagnosis is not possible.
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Affiliation(s)
- Aarti Goswami
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota, US
| | - Amy J Zhang
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota, US
| | - Shifteh Vahidi
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota, US
| | - Tetyana Mettler
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota, US
| | - Jimmie Stewart
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota, US
| | - Khalid Amin
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota, US
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31
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Johnson DN, Onenerk M, Krane JF, Rossi ED, Baloch Z, Barkan G, Bongiovanni M, Callegari F, Canberk S, Dixon G, Field A, Griffith CC, Jhala N, Jiang S, Kurtycz D, Layfield L, Lin O, Maleki Z, Perez-Machado M, Pusztaszeri M, Vielh P, Wang H, Zarka MA, Faquin WC. Cytologic grading of primary malignant salivary gland tumors: A blinded review by an international panel. Cancer Cytopathol 2020; 128:392-402. [PMID: 32267606 DOI: 10.1002/cncy.22271] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 02/11/2020] [Accepted: 02/18/2020] [Indexed: 01/15/2023]
Abstract
BACKGROUND Fine needle aspiration (FNA) is commonly used for the preoperative evaluation of salivary gland tumors. Tumor grade is a key factor influencing clinical management of salivary gland carcinomas (SGCs). To assess the ability to grade nonbasaloid SGCs in FNA specimens, an international panel of cytopathologists convened to review and score SGC cases. METHODS The study cohort included 61 cases of primary SGC from the pathology archives of 3 tertiary medical centers. Cases from 2005 to 2016 were selected, scanned, and digitized. Nineteen cytopathologists blinded to the histologic diagnosis reviewed the digitized cytology slides and graded them as low, high, or indeterminate. The panelists' results were then compared to the tumor grades based on histopathologic examination of the corresponding resection specimens. RESULTS All but 2 of the 19 (89.5%) expert panelists review more than 20 salivary gland FNAs per year; 16 (84.2%) of the panelists work at academic medical centers, and 13 (68.4%) have more than 10 years' experience. Participants had an overall accuracy of 89.4% in the grading of SGC cases, with 90.2% and 88.3% for low- and high-grade SGC, respectively. Acinic cell carcinoma and mucoepidermoid carcinoma had the highest degree of accuracy, while epithelial-myoepithelial carcinoma and salivary duct carcinoma had the lowest degree of accuracy. As expected, the intermediate-grade SGC cases showed the greatest variability (high-grade, 42.1%; low-grade, 37.5%, indeterminate, 20.4%). CONCLUSION This study confirms the high accuracy of cytomorphologic grading of primary SGC by FNA as low- or high-grade. However, caution should be exercised when a grade cannot be confidently assigned.
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Affiliation(s)
- Daniel N Johnson
- Department of Pathology, Cytopathology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Mine Onenerk
- Gaziosmanpasa Training and Research Hospital, Istanbul, Turkey
| | - Jeffrey F Krane
- Department of Pathology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Esther Diana Rossi
- Department of Pathology, Fondazione Policlinico Universitario "Agostino Gemelli," IRCCS, Universita' Cattolica, Rome, Italy
| | - Zubair Baloch
- Department of Pathology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Güliz Barkan
- Loyola University Healthcare System, Maywood, Illinois
| | | | | | - Sule Canberk
- Cancer Signaling and Metabolism, Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.,Division of Cytopathology, Department of Pathology, Acibadem University, Istanbul, Turkey
| | - Glen Dixon
- HCA Laboratories, HCA Healthcare UK, London, United Kingdom
| | - Andrew Field
- Department of Pathology, St. Vincent Hospital, Sydney, Australia
| | | | - Nirag Jhala
- Department of Pathology and Laboratory Medicine, Temple University Hospital, Philadelphia, Pennsylvania
| | - Sara Jiang
- Department of Pathology, Duke University Medical Center, Durham, North Carolina
| | - Daniel Kurtycz
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, State Laboratory of Hygiene, Madison, Wisconsin
| | - Lester Layfield
- Department of Pathology and Anatomical Services, University of Missouri, Columbia, Missouri
| | - Oscar Lin
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Zahra Maleki
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland
| | | | - Marc Pusztaszeri
- Department of Pathology, McGill University, Montreal, Quebec, Canada
| | - Philippe Vielh
- Department of Pathology, Laboratoire National de Santé, Dudelange, Luxembourg
| | - He Wang
- Department of Pathology and Laboratory Medicine, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, New Jersey
| | - Matthew A Zarka
- Department of Pathology and Laboratory Medicine, Mayo Clinic, Scottsdale, Arizona
| | - William C Faquin
- Department of Pathology, Massachusetts General Hospital, Harvard School of Medicine, Boston, Massachusetts
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32
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Maleki Z. The Milan System for Reporting Salivary Gland Cytopathology: a universal language to improve patient care. J Am Soc Cytopathol 2020; 9:113-115. [PMID: 32192913 DOI: 10.1016/j.jasc.2020.01.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 10/25/2022]
Affiliation(s)
- Zahra Maleki
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland, USA.
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33
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Miller JA, An D, Shafique K, Song S, Rao RA, Viswanathan K, Eykman E, Wiles A, Ali SZ, Field A, Fadda G, Barkan GA, Layfield LJ, Rossi ED, Powers CN, Siddiqui MT, Kholova I, Baloch Z, Maleki Z. Mucoepidermoid carcinoma, acinic cell carcinoma, and adenoid cystic carcinoma on fine-needle aspiration biopsy and The Milan System: an international multi-institutional study. J Am Soc Cytopathol 2019; 8:270-277. [PMID: 31104944 DOI: 10.1016/j.jasc.2019.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/02/2019] [Accepted: 04/02/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND We evaluated the diagnostic accuracy (DA), risk of neoplasm (RON), and risk of malignancy (ROM) for the commonly encountered malignant salivary gland tumors mucoepidermoid carcinoma (MECa), acinic cell carcinoma (ACCa), and adenoid cystic carcinoma (ADCa) applying The Milan System for Reporting Salivary Gland Cytology (MSRSGC). MATERIALS AND METHODS The cytology archives from 2007 to 2017 of 9 academic institutions were searched for salivary gland FNAs for the following key words mentioned either in the principal and/or differential diagnosis: MEC, ACCa, and ADCa. The original cytology diagnosis was retrospectively classified according to the MSRSGC. Patient demographics, biopsy site, and available surgical follow-up were recorded. The final analysis included only cases with surgical follow-up. RESULTS A total of 212 salivary gland FNAs were included. Based on retrospective reclassification according to MSRSGC, 97 of 212 (46%) FNA cases carried a diagnosis of malignancy specific for either MECa, ACCa, or ADCa. In the remaining 115 cases, 24 of 212 (11%) were reclassified as suspicious for malignancy (SM) and 91 of 212 (43%) as salivary gland neoplasm of uncertain malignant potential (SUMP). The DA for MECa, ACCa, and ADCa was 78.7%, 75% and 89%, respectively. The RON was 100% for all 3 tumors and the ROM was 93.6% for MECa, 96.8% for ACCa, and 94.4% for ADCa. CONCLUSIONS The DA of 78.7% for MECa, 75% for ACCa, and 89% for ADCa is reasonable in FNA specimens. Although the management of definitive cases of malignancy remains unchanged, the MSRSGC provides a ROM for SM and SUMP categories, which can improve patient management.
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Affiliation(s)
- James A Miller
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland
| | - Daniel An
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland
| | - Khurram Shafique
- Department of Pathology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Sharon Song
- Department of Pathology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rema A Rao
- Department of Pathology, New York Presbyterian, Weill Cornell Medicine, Pathology and Laboratory Medicine, New York, New York
| | - Kartik Viswanathan
- Department of Pathology, New York Presbyterian, Weill Cornell Medicine, Pathology and Laboratory Medicine, New York, New York
| | - Elizabeth Eykman
- Department of Pathology, St. Vincent Hospital, Sydney, Australia
| | - Austin Wiles
- Department of Pathology, Virginia Commonwealth University, Richmond, Virginia
| | - Syed Z Ali
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland
| | - Andrew Field
- Department of Pathology, St. Vincent Hospital, Sydney, Australia
| | - Guido Fadda
- Department of Pathology, Catholic University of Sacred Heart, Fondazione Policlinico Univeristario A, Rome, Italy
| | - Guliz A Barkan
- Department of Pathology, Loyola University Medical Center, Maywood, Illinois
| | - Lester J Layfield
- Department of Pathology, University of Missouri School of Medicine, Columbia, Missouri
| | - Esther D Rossi
- Department of Pathology, Catholic University of Sacred Heart, Fondazione Policlinico Univeristario A, Rome, Italy
| | - Celeste N Powers
- Department of Pathology, Virginia Commonwealth University, Richmond, Virginia
| | - Momin T Siddiqui
- Department of Pathology, New York Presbyterian, Weill Cornell Medicine, Pathology and Laboratory Medicine, New York, New York
| | - Ivana Kholova
- Department of Pathology, Fimlab Laboratories and Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Zubair Baloch
- Department of Pathology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Zahra Maleki
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland.
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Liang CA, Liu J, Ogunniyi JT, Zhu H, Zhang S. The risk for malignancy using the Milan salivary gland classification categories: A 5-year retrospective review. Cytojournal 2019; 16:14. [PMID: 31516536 PMCID: PMC6683416 DOI: 10.4103/cytojournal.cytojournal_45_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 01/15/2019] [Indexed: 01/19/2023] Open
Abstract
Aims: Since the six-tier Milan salivary gland classification has been introduced, there are very limited studies in literature reporting the risk stratification of the Milan classification. Methods: We retrospectively classified a total of 285 salivary gland cytology cases into Milan reporting categories; there were 23 (8.1%) nondiagnostic, 48 (16.8%) nonneoplastic, 19 (6.7%) atypia of undetermined significance (AUS), 138 (48.4%) benign neoplasm, 13 (4.6%) neoplasm of uncertain malignant potential (NUMP), 8 (2.8%) suspicious for malignancy, and 36 (12.6%) malignant. Almost 110 cases (38.6%) had surgical follow-up resections. Results: The overall risk for malignancy (ROM) was 12.5% for AUS, 3.2% for benign neoplasm, 72.7% for NUMP, and 100% for the suspicious for malignancy and malignant. The ROM for nondiagnostic and nonneoplastic categories was not representative due to limited follow-up resections. The salivary cytology had sensitivity, specificity, positive predictive value, and negative predictive value of 93.0%, 100%, 100%, and 46.2% for neoplasm and 82.3%, 95.8%, 90.3%, and 92.0% for malignant. Conclusion: Our study supports the adaptation of the six-tier Milan classification for reporting salivary gland cytology, as well as emphasizing the utility of the NUMP category.
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Affiliation(s)
- Christine A Liang
- Address: Department of Pathology and Laboratory Medicine, University of Texas Mcgovern Medical School, Houston, Texas, USA
| | - Jing Liu
- Address: Department of Pathology and Laboratory Medicine, University of Texas Mcgovern Medical School, Houston, Texas, USA
| | - Jaiyeola Thomas Ogunniyi
- Address: Department of Pathology and Laboratory Medicine, University of Texas Mcgovern Medical School, Houston, Texas, USA
| | - Hui Zhu
- Address: Department of Pathology and Laboratory Medicine, University of Texas Mcgovern Medical School, Houston, Texas, USA
| | - Songlin Zhang
- Address: Department of Pathology and Laboratory Medicine, University of Texas Mcgovern Medical School, Houston, Texas, USA
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Chowsilpa S, An D, Lose H, Huang X, Nayar R, Maleki Z. Risk of malignancy associated with cytomorphology subtypes in the salivary gland neoplasm of uncertain malignant potential (SUMP) category in the Milan System: A bi-institutional study. Cancer Cytopathol 2019; 127:377-389. [PMID: 31116514 DOI: 10.1002/cncy.22150] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/19/2019] [Accepted: 04/30/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Salivary gland neoplasm of uncertain malignant potential (SUMP) is a diagnostic category in the Milan System for Reporting Salivary Gland Cytopathology. The objective of this study was to assess the risk of neoplasm (RON) and the risk of malignancy (ROM) in SUMP cases by evaluating them based on their prominent cytomorphology. METHODS The pathology databases were searched for cases of fine-needle aspiration-diagnosed SUMP at The Johns Hopkins Hospital and Northwestern University from 2013 to 2018. Only cytopathology cases diagnosed as SUMP that had available surgical follow-up were included. RESULTS Sixty-five patients with SUMP were identified, including 31 men and 34 women who ranged in age from 15 to 87 years (mean age, 55.2 years). Sixty-five cases had histologic follow-up, including 13 (20%) with basaloid features, 13 (20%) with oncocytic features, and 39 (60%) with unspecified features. No cases with clear cell features were found. Overall, the RON in the SUMP category was 95.4% (62 of 65 cases), and the ROM was 33.8% (22 of 65 cases). The RON in SUMPs with basaloid, oncocytic, and unspecified subtypes was 92.3%, 100%, and 94.9%, respectively, whereas the ROM was 38.5%, 7.7%, and 41%, respectively. The most common benign neoplasm was pleomorphic adenoma (23.1%), whereas mucoepidermoid carcinoma (9.2%) was the most common malignant neoplasm. CONCLUSIONS This study shows that the ROM differs significantly based on cytomorphology subtypes, whereas the overall ROM is approximately the same as the target rate in the Milan System for Reporting Salivary Gland Cytopathology. Moreover, the RON remains high in the SUMP category among different cytomorphology subtypes. Adequate sampling, immunohistochemical staining, and familiarity with metaplastic and reactive changes may improve the diagnosis.
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Affiliation(s)
- Sayanan Chowsilpa
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland.,Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Daniel An
- National Institutes of Health, Bethesda, Maryland
| | - Holly Lose
- Division of Cytopathology, Department of Pathology, Northwestern University, Chicago, Illinois
| | - Xiao Huang
- Division of Cytopathology, Department of Pathology, Northwestern University, Chicago, Illinois
| | - Ritu Nayar
- Division of Cytopathology, Department of Pathology, Northwestern University, Chicago, Illinois
| | - Zahra Maleki
- Division of Cytopathology, Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland
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Lubin D, Song S, Zafar HM, Baloch Z. The key radiologic and cytomorphologic features of oncocytic and oncocytoid lesions of the salivary gland. Diagn Cytopathol 2019; 47:617-636. [PMID: 30912629 DOI: 10.1002/dc.24175] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 03/07/2019] [Indexed: 12/18/2022]
Abstract
Oncocytic and oncocytoid lesions represent a distinct subset of salivary gland lesions. True oncocytic lesions of the salivary gland are entirely composed of oncocytes. These are characterized by the presence of abundant eosinophilic granules due to the presence of abundant cytoplasmic mitochondria. Oncocytic lesions of the salivary gland include oncocytosis, oncocytoma, and oncocytic carcinoma. In addition to the true oncocytic lesion, there exists another group of salivary gland lesions, which demonstrate cells with abundant and occasionally granular cytoplasm. These are often termed as "oncocytoid" lesions. The recently proposed Milan System for reporting salivary gland cytology clearly states that fine-needle aspiration specimens representing oncocytic/oncocytoid lesions of salivary gland cannot effectively distinguish between a nonneoplastic lesion, benign and malignant neoplasms. Therefore, most lesions lacking classic cytomorphologic features will be classified under the umbrella diagnostic term of "Salivary Gland Neoplasm of Uncertain Malignant Potential" (SUMP). In this review, we discuss and illustrate key clinicopathologic and radiologic features that can help the practicing cytopathologist narrow down the differential and provide the best management based diagnosis.
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Affiliation(s)
- Daniel Lubin
- Department of Pathology & Laboratory Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Sharon Song
- Department of Pathology & Laboratory Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Hanna M Zafar
- Department of Radiology, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Zubair Baloch
- Department of Pathology & Laboratory Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania
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Bulut AŞ, Albayrak A, Kulaçoğlu S. Synchronous salivary duct carcinoma and Warthin's tumour in the same parotid gland: Cytological features and differential diagnosis. Cytopathology 2019; 30:545-548. [PMID: 30864182 DOI: 10.1111/cyt.12686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/18/2019] [Accepted: 03/01/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Asiye Şafak Bulut
- Department of Pathology, SBU Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Aynur Albayrak
- Department of Pathology, SBU Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Sezer Kulaçoğlu
- Department of Pathology, SBU Ankara Numune Training and Research Hospital, Ankara, Turkey
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38
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Park W, Bae H, Park MH, Hwang NY, Sohn I, Cho J, Jeong HS. Risk of high-grade malignancy in parotid gland tumors as classified by the Milan System for Reporting Salivary Gland Cytopathology. J Oral Pathol Med 2019; 48:222-231. [PMID: 30576028 DOI: 10.1111/jop.12816] [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: 09/12/2018] [Revised: 11/30/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND The Milan System for Reporting Salivary Gland Cytopathology (Milan System) has previously shown its diagnostic utility by categorizing the seven cytology findings in salivary gland lesions. However, there has been lack of study about the risk of high-grade malignancy in the cytology diagnosis based on the Milan System. Thus, we tried to identify the diagnostic ability of the Milan System for high-grade malignancy and to suggest an improved diagnostic approach for preoperative estimation of high-grade malignancy using the Milan System. METHODS A total of 413 patients with parotid gland tumors, who had undergone surgical resection from 2011 to 2015 were included in the present study retrospectively. Cytopathology was reclassified according to the Milan System by two independent reviewers. The outcomes were risk of malignancy and risk of high-grade malignancy. The diagnostic performance of the Milan System category [Malignant] for detecting high-grade malignancy was calculated. RESULTS The risk of malignancy was 83.3% and 100% in the Milan System categories [Suspicious for Malignancy] and [Malignant], respectively. Meanwhile, the risk of high-grade malignancy was 16.7% and 55.9% in these two categories. Disease-free survival of patients with high-grade malignancy was significantly worse than those with low- and intermediate-grade malignancy. Union combining the Milan System category [Malignant] with the presence of nodal metastasis suggested high-grade malignancy with an acceptable diagnostic sensitivity (0.889-0.963) and negative predictive value (0.900-0.966). CONCLUSIONS The Milan System category [Malignant] with the presence of nodal metastasis suggested parotid gland tumors as high-grade malignancy in a pretreatment setting.
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Affiliation(s)
- Woori Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyunsik Bae
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Min-Hae Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Na Young Hwang
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
| | - Insuk Sohn
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
| | - Junhun Cho
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Han-Sin Jeong
- Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Song SJ, Shafique K, Wong LQ, LiVolsi VA, Montone KT, Baloch Z. The utility of the Milan System as a risk stratification tool for salivary gland fine needle aspiration cytology specimens. Cytopathology 2018; 30:91-98. [PMID: 30303566 DOI: 10.1111/cyt.12642] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/17/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To perform a retrospective investigation of our institutional experience with salivary gland fine needle aspirations (FNA) through the framework of The Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) and assess the risks of neoplasm and malignancy for each diagnostic category. METHODS All salivary gland FNAs performed from January 2009 to December 2016 were retrospectively categorised according to the MSRSGC. When available, pre-operative cytological results were correlated with subsequent histological follow-up. RESULTS In total, 893 FNAs were reviewed. The specimens were retrospectively classified as nondiagnostic (ND: 13.5%), non-neoplastic (NN: 16.1%), atypia of undetermined significance (AUS: 10.8%), benign neoplasm (BN: 34.9%), salivary gland neoplasm of uncertain malignant potential (SUMP: 8.2%), suspicious for malignancy (SM: 2.7%) and malignant (M: 13.8%). Histological follow-up was available for 429 cases (48%); the majority (68.1%) were benign. The risks of neoplasm and malignancy for each category were as follows: ND: 64.5%, 16.1%; NN: 42.9%, 17.9%; AUS: 79.6%, 30.6%; BN: 100%, 2.2%; SUMP: 100%, 46.6%; SM: 94.7%, 78.9%; and M: 100%, 98.5%. CONCLUSIONS The MSRSGC is a useful classification scheme for stratifying salivary gland lesions according to their associated risk of malignancy and guiding clinicians toward appropriate management. Diagnostic pitfalls are seen in a small proportion of cases and a multidisciplinary approach for assessing salivary gland pathology is essential in their evaluation.
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Affiliation(s)
- Sharon J Song
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Khurram Shafique
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Lawrence Q Wong
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Virginia A LiVolsi
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kathleen T Montone
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Zubair Baloch
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
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