Fine needle aspiration cytology of an ovarian luteinized follicular cyst mimicking a XXXX . A case report.

@entity1 @entity7979 @entity722 @entity5 @entity1313 @entity42 @entity9296
BACKGROUND: Fine needle aspiration is a valuable tool in the diagnosis of @entity42 , especially in the young and when a nonneoplastic cyst is suspected. High cellularity, epitheliallike clusters and cellular atypia in aspirates from functional cysts are known features that may lead to an erroneous diagnosis of @entity5 . Granulosa cells in ovarian cystic fluids may originate in @entity7979 or @entity722 . In luteinized @entity7979 the cells usually have ample cytoplasm and tend to form clusters. This report draws attention to a case where abundant, dispersed cells lacking cytoplasm led to the incorrect diagnosis of a @entity722 . CASE: In an ovarian cystic aspirate from a 34-year-old @entity1 , the fluid was highly cellular, with a striking predominance of cells interpreted as granulosa cells. Granulosa cells are often found in aspirates from functional cysts, but striking cellularity, prominent nuclear grooves and lack of luteinization made us consider a @entity722 rather than a follicle-derived cyst. Surgery was performed, and histology revealed a benign serous @entity9296 but also numerous maturing follicles and @entity7979 with thick layers of granulosa cells. The aspirate obviously did not represent the @entity9296 but one of the prominent @entity7979 . CONCLUSION: An understanding of the cytologic features of functional @entity42 , including the pitfalls, is necessary to avoid a false diagnoses of a @entity1313 . For a correct interpretation of the cytologic findings, close communication with the clinician and with the radiologist performing the aspiration is of vital importance.
