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Vol.48, No.6, 2014
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Archive (2009~
Archive-the Korean Journal of Pathology(1967~2008)
Archive-the Korean Journal of Cytopathology(1990~2008)
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  Vol.43, No.5:489-493, October 2009
Case reports
http://dx.doi.org/10.4132/KoreanJPathol.2009.43.5.489
Cytology of Plasmacytoid Type Myoepithelioma - Report of Two Cases -

Na Rae Kim, Hyun Yee Cho, Seung-Yeon Ha

Department of Pathology, Gachon University Gil

Myoepithelioma is a rare benign tumor of salivary gland myoepithelial cells, most commonly
as a spindle subtype. Here, we present two cases of fine needle aspiration cytology of plasmacytoid
myoepithelioma arising from a parotid gland and a hard palate. Aspirates showed
plasmacytoid cells with pink-staining, homogeneous, abundant eosinophilic cytoplasm eccentrically
displacing the nucleus in cohesive and dissociated forms. Rarely, nuclear grooves and
intranuclear cytoplasmic inclusions were evident. These unfamiliar cytologic findings of uncommon
myoepithelioma often cause diagnostic difficulties in preoperative aspiration cytology.
Recognition of those rare findings provides a reliable diagnostic clue.
Key Words : Myoepithelioma; Biopsy, fine needle; Cytology; Salivary gland neoplasms

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