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Aspiration cytology of mammary analogue secretory carcinoma of the salivary gland.
MedLine Citation:
PMID:  25087572     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Aspiration cytologic findings of mammary analogue secretory carcinoma (MASC), a newly established salivary gland neoplasm defined by a t(12;15)(p13;q25) ETV6-NTRK3 translocation, are not fully characterized to date. We report cytologic descriptions of nine cases of molecularly confirmed MASC, including two with unusual findings.
METHODS: Aspiration smears from nine MASCs of the salivary glands were retrospectively reviewed and analyzed according to the cellular and structural features of the corresponding surgical specimens.
RESULTS: Aspiration smears of MASC generally reflected the histologic diversity of the tumors. Among usual histologic findings, a micropapillary pattern was associated with a predominance of vacuolated individual cells on aspiration smears, a papillary-cystic pattern with a predominance of thin branching papillary structures, and a microcystic pattern with a predominance of irregular sheets of eosinophilic cells. There were two unusual cases, one with three-dimensional groups of high-grade atypical cells, and one with epithelial clusters floating in a notably mucinous background. These cases represented MASC with high-grade transformation and MASC with cystadenocarcinoma-like features, respectively. The secretory activity of MASC was not prominent in the aspiration specimens.
CONCLUSIONS: Although unusual cases were present, most MASC cases showed characteristic cytologic findings, which could aid the cytologic diagnosis of MASC. And knowledge of the histologic spectrum of MASC, including high-grade transformation, could be valuable for cytological differential diagnoses of salivary gland tumors, and the management of patients with MASC. Diagn. Cytopathol. 2014. © 2014 Wiley Periodicals, Inc.
Authors:
Min Jung Jung; Sang Yoon Kim; Soon Yuhl Nam; Jong-Lyel Roh; Seung-Ho Choi; Jeong Hyun Lee; Jung Hwan Baek; Kyung-Ja Cho
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-8-4
Journal Detail:
Title:  Diagnostic cytopathology     Volume:  -     ISSN:  1097-0339     ISO Abbreviation:  Diagn. Cytopathol.     Publication Date:  2014 Aug 
Date Detail:
Created Date:  2014-8-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8506895     Medline TA:  Diagn Cytopathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Wiley Periodicals, Inc.
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