title: Retroperitoneal endodermal sinus tumor. Report of a case with an abnormal cervicovaginal smear.
abstract: An unusual case of an endodermal sinus tumor arising in the retroperitoneum and invading the fallopian tube is reported. The patient presented with malignant cells mimicking adenocarcinoma in the cervicovaginal smear. The differential diagnoses of such cells in cervicovaginal cytology are discussed. The cytohistologic, immunohistochemical and ultrastructural findings of the tumor are correlated.
authors.affiliation: Department of Pathology, National University Hospital, National University of Singapore.
authors.forename: S M
authors.initials: SM
authors.lastname: Chong
authors.forename: A
authors.initials: A
authors.lastname: Wee
authors.forename: S C
authors.initials: SC
authors.lastname: Yeoh
authors.forename: B
authors.initials: B
authors.lastname: Nilsson
authors.forename: S
authors.initials: S
authors.lastname: Chan
mesh_terms: D000328:Adult; D018240:Endodermal Sinus Tumor / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006801:Humans; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014626:Vaginal Smears