title: A case of angiomyolipoma presenting as a huge retroperitoneal mass.
abstract: A 60-year-old man was admitted to Hitachi General Hospital, Hitachi, Japan, with general fatigue and epigastric fullness. A large mass was palpated on whole abdomen and abdominal computed tomography scan showed a large lobulated fatty mass surrounding the right kidney, which indicated the existence of angiomyolipoma arising from the right kidney. The tumor was success-fully resected through a thoracoabdominal incision. The total weight of the resected specimen was 3500 g, apparently the largest angiomyolipoma resected by operation in Japan.
authors.affiliation: Department of Urology, Hitachi General Hospital, Hitachi, Ibaraki, Japan. masakazu.tsutsumi@ibabyo.hitachi.co.jp
authors.forename: M
authors.initials: M
authors.lastname: Tsutsumi
authors.forename: A
authors.initials: A
authors.lastname: Yamauchi
authors.forename: S
authors.initials: S
authors.lastname: Tsukamoto
authors.forename: S
authors.initials: S
authors.lastname: Ishikawa
mesh_terms: D018207:Angiomyolipoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*