The GEC showed improved performance characteristics when coupled with a repeat FNA. It continues to be of low specificity and positive predictive value in oncocytic follicular lesions. Diagn. Cytopathol. 2016;44:867-873. © 2016 Wiley Periodicals, Inc.

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Overall, the modules were viewed positively by participants. Adaptive eLearning modules can provide an engaging and effective adjunct to traditional teaching methods in cervical cytopathology. Cancer Cytopathol 2018;126:129-35. © 2017 American Cancer Society.

Mammary Analogue Secretory Carcinoma (MASC) is a newly recognized neoplasm of the salivary gland, first described in 2010. This tumor harbors a unique translocation, t(12;15)(p13;q25) that results in the fusion of ETV6 with NTRK3 which produces a transformative chimeric tyrosine kinase. To date, few cases of MASC sampled by fine needle aspiration have been reported. Cytologically, MASC can be confused with other oncocytic salivary gland tumors, including Warthin-tumor, acinic cell carcinoma (AciCC) and mucoepidermoid carcinoma. It is characterized by a monomorphic population of lesional cells with round nuclei, prominent nucleoli and abundant, eosinophilic foamy cytoplasm; forming papillary groups with transgressing vessels. Though, based on cytomorphology alone, the definite diagnosis can be challenging, in conjunction with available clinical clues (i.e. male patient, extra-parotid site) MASC should be included in the differential diagnosis of FNA specimens diagnosed as oncocytic salivary gland neoplasms or suspicious for AciCC. Here we present a case of MASC with FNA sampling at our institution.