title: Primary retroperitoneal liposarcoma mimicking ovarian cancer: a case report.
abstract: Primary retroperitoneal liposarcoma is a rare malignancy comprising about only 0.1% of all cancers. It produces nonspecific symptoms and is often extensive when diagnosed. In this report, we present a case of a 68-year-old female patient who had a 29-kg retroperitoneal liposarcoma. Her early symptoms--including vague digestive disturbances, increasing abdominal girth and an abdominal mass, and clinical examinations such as sonography and computed tomography scan led to a preoperative diagnosis of ovarian cancer, until surgical and pathologic confirmation. Gross, radical resection of the tumor was successfully performed, and provided the most effective primary therapeutic approach. Histopathology revealed a mixed-type liposarcoma, with metastasis to the appendix. A poor prognosis was expected. Postoperative periodic follow-up was started to monitor for early detection of recurrence.
authors.affiliation: Department of Obstetrics and Gynaecology, Mackay Memorial Hospital, Taipei, Taiwan, ROC.
authors.forename: J C
authors.initials: JC
authors.lastname: Hsiao
authors.forename: Y C
authors.initials: YC
authors.lastname: Yang
authors.forename: W C
authors.initials: WC
authors.lastname: Lin
authors.forename: Y N
authors.initials: YN
authors.lastname: Lin
authors.forename: K G
authors.initials: KG
authors.lastname: Wang
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008080:Liposarcoma / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D010051:Ovarian Neoplasms / Q000175:diagnosis*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy