CHOROIDAL CELLS IN OVARIAN-CYST FLUID - A CASE-REPORT

BACKGROUND: The ovary is conspicuous for the wide diversity of histolo gic tumor types that it contains. Unusual or rare tumors may present d iagnostic difficulty on cytologic examination. CASE: A 36-year-old wom an presented with an 80-mm cystic lesion in the left ovary. Fine needl e aspiration provided 30 mL of transparent, light yellow fluid. On cyt ologic examination, numerous clusters and rosettes of benign cells, re sembling choroid plexus cells, were seen. Surgical resection confirmed the presence of an ependymal cyst adjacent to a mature cystic teratom a (dermoid cyst).CONCLUSION: We report this unique case in order to al ert cytologists unfamiliar with cerebrospinal fluid cytopathology to t he rare entity of ovarian ependymal cysts.