Fine-needle aspiration cytology of epithelioid malignant XXXX : A case report and review of the literature.

@entity1263 @entity242 @entity5 @entity5606 @entity189 @entity1492 @entity1463 @entity3580 @entity361 @entity320
UNASSIGNED: The epithelioid variant of malignant @entity1263 (eMPNST) is an extremely rare soft tissue @entity5 comprising less than 5% of all MPNSTs. It is distinguished cytomorphologically from a conventional MPNST by the presence of polymorphous round epithelioid cells arranged in loose clusters with or without spindled @entity5 cells. These features pose a diagnostic challenge because the differential diagnosis involves a variety of mesenchymal and @entity361 including @entity242 , @entity1463 epithelioid @entity1492 , @entity5606 , @entity3580 , @entity189 , and @entity320 . Thus, it may become imperative to perform immunochemical stains on cell blocks of FNA aspirates to arrive at definitive diagnosis. Reports describing the cytologic features of eMPNST are rare. Herein, we report a case of eMPNST with focus on cytomorphologic and cytoimmunochemical features and differential diagnosis. Diagn. Cytopathol. 2015.    2015 Wiley Periodicals, Inc.
