title: Primary ovarian rhabdomyosarcoma associated with clear cell carcinoma of the ovary: a case report and review of the literature.
abstract: The clinicopathologic and immunohistochemical findings of a case of coexistent primary ovarian rhabdomyosarcoma and clear cell carcinoma of the ovary are reported. The tumor was detected in a 41-year-old premenopausal woman who had a 1-year history of pelvic pain. On physical examination, a 14.0-cm left adnexal mass was found for which a hysterectomy with bilateral salpingo-oophorectomy and staging biopsies were performed. The tumor was composed of solid and cystic areas, and two distinct microscopic components were identified: clear cell carcinoma and rhabdomyosarcoma. Immunoperoxidase studies demonstrated that the neoplastic cells in the latter component were positive for desmin, muscle-specific actin, and myoglobin. A biopsy taken from the pelvic peritoneum revealed rhabdomyosarcoma (FIGO stage IIB). Despite two cycles of chemotherapy, the disease persisted in the pelvis 4 months after diagnosis.
authors.affiliation: Department of Pathology, University of Texas Medical School at Houston, USA.
authors.forename: S
authors.initials: S
authors.lastname: Sant'Ambrogio
authors.forename: A
authors.initials: A
authors.lastname: Malpica
authors.forename: B
authors.initials: B
authors.lastname: Schroeder
authors.forename: E G
authors.initials: EG
authors.lastname: Silva
mesh_terms: D000199:Actins / Q000032:analysis; D018262:Adenocarcinoma, Clear Cell / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D000328:Adult; D003893:Desmin / Q000032:analysis; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D007150:Immunohistochemistry; D009211:Myoglobin / Q000032:analysis; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010051:Ovarian Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D017699:Pelvic Pain; D012208:Rhabdomyosarcoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery
chemical_list: D000199:Actins; D003893:Desmin; D009211:Myoglobin