title: Giant extrarenal retroperitoneal angiomyolipoma: a case report and literature review.
abstract: Extrarenal angiomyolipoma is an uncommon disease entity and is rare in the retroperitoneum. We report a case of giant extrarenal retroperitoneal angiomyolipoma mimicking liposarcoma. A 35-year-old woman presented with a history of increased abdominal circumference and urinary frequency. Abdominal computerized tomography demonstrated a 24 x 21 x 16 cm retroperitoneal fatty tumor displacing the right kidney to the left upper quadrant of the abdomen. At laparotomy, the tumor was widely excised and the right kidney was successfully preserved. Final histologic examination identified the tumor as an angiomyolipoma. At 4-month postoperative follow-up, no evidence of tumor recurrence was found and the right kidney was fully functional.
authors.affiliation: Department of Urology, Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
authors.forename: Yung-Chin
authors.initials: YC
authors.lastname: Lee
authors.forename: Shu-Pin
authors.initials: SP
authors.lastname: Huang
authors.forename: Chia-Chu
authors.initials: CC
authors.lastname: Liu
authors.forename: Wen-Jeng
authors.initials: WJ
authors.lastname: Wu
authors.forename: Yii-Her
authors.initials: YH
authors.lastname: Chou
authors.forename: Chun-Hsiung
authors.initials: CH
authors.lastname: Huang
mesh_terms: D000328:Adult; D018207:Angiomyolipoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*