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Oncocytic lipoadenoma of the parotid gland: Cytological findings and differential diagnosis on fine‐needle aspiration
Author(s) -
Ashraf Mohammad Javad,
Azarpira Negar,
Anbardar Mohammad Hossein,
Hashemi Seyed Basir
Publication year - 2015
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/dc.23135
Subject(s) - adipose tissue , pathology , medicine , parotid gland , salivary gland , differential diagnosis , fine needle aspiration , anatomy , biopsy
Oncocytic lipoadenoma is a rare benign neoplastic lesion of salivary gland. To the best of our knowledge, the detailed cytomorphological findings were described only in two cases. We are reporting a 56‐year‐old woman who presented with 1‐year history of right parotid gland mass. Cytologic examination revealed tight clusters of bland looking oncocytic ductal cells with few aggregates of mature adipose tissue in a lipoid background and a benign oncocytic tumor of parotid gland was rendered. Histologically, a tumor with islands of oncocytic epithelial cells admixed with abundant mature adipose tissue was identified. Oncocytic lipoadenoma despite its rarity should be considered in the differential diagnosis of salivary gland fine‐needle aspirations containing oncocytes especially those which are accompanied by mature adipose tissue and lipoid background. Diagn. Cytopathol. 2015;43:72–74. © 2014 Wiley Periodicals, Inc.