title: Uncommon vascular tumor of the ovary. Primary ovarian epithelioid hemangioendothelioma or vascular sarcomatous transformation in ovarian germ cell tumor?
abstract: Epithelioid hemangioendothelioma (EHE) is an unusual vascular tumor, which usually occurs in the soft tissue, liver, breast, lung and bone. We submit a case of EHE, a tumor never before reported in the ovary. A 20-year-old woman was admitted with a medical history of unilateral ovarian tumor. The right ovary was totally removed and histologically, the tumor was composed of epithelioid cells with eosinophilic cytoplasm and prominent intracytoplasmic vacuoles associated with myxohyaline matrix. No morphologic evidence of germ cell tumor was observed. Immunohistochemically, the tumor cells were positive for CD31 and CD34. However, all germ cell tumor markers were negative. The final diagnosis was EHE of the ovarian gland and sarcomatous transformation in ovarian germ cell tumor was excluded after extensive histopathological and immunohistochemical study. EHE is an uncommon vascular tumor, which is rarely seen in female genital tract and this is the first report of EHE in ovarian gland. Final diagnosis depends on histopathological and immunohistochemical features.
authors.forename: Carmen
authors.initials: C
authors.lastname: Illueca
authors.forename: Isidro
authors.initials: I
authors.lastname: Machado
authors.forename: Ana
authors.initials: A
authors.lastname: García
authors.forename: Amparo
authors.initials: A
authors.lastname: Covisa
authors.forename: Javier
authors.initials: J
authors.lastname: Morales
authors.forename: Julia
authors.initials: J
authors.lastname: Cruz
authors.forename: Victor
authors.initials: V
authors.lastname: Traves
authors.forename: Sergio
authors.initials: S
authors.lastname: Almenar
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D018323:Hemangioendothelioma, Epithelioid / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D009373:Neoplasms, Germ Cell and Embryonal / Q000175:diagnosis / Q000473:pathology; D010051:Ovarian Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D012509:Sarcoma / Q000175:diagnosis / Q000473:pathology; D018615:Ultrasonography, Doppler, Color; D055815:Young Adult