title: [A case of hemangiopericytoma in the retroperitoneal cavity and a review of literature in Japan].
abstract: A case of hemangiopericytoma in the pelvic retroperitoneum is reported. The patient, a 45-year-old man, visited us with a complaint of sudden urinary retention. Intravenous pyelogram and computerized tomographic scan revealed a large pelvic mass displacing the bladder to the left superiorly. Laparotomy was performed, and biopsy showed the mass to be a malignant hemangiopericytoma. He underwent a surgical excision after receiving irradiation to the true pelvis and embolization of right internal iliac. He developed multiple pulmonary and liver metastases and died 2 years after surgery. Thirty cases of retroperitoneal hemangiopericytoma reported in Japan are reviewed.
authors.affiliation: Department of Urology, Yokohama Municipal Citizen's Hospital.
authors.forename: T
authors.initials: T
authors.lastname: Sakuramoto
authors.forename: M
authors.initials: M
authors.lastname: Yao
authors.forename: T
authors.initials: T
authors.lastname: Sugawara
authors.forename: S
authors.initials: S
authors.lastname: Fukushima
authors.forename: Y
authors.initials: Y
authors.lastname: Kameda
mesh_terms: D006393:Hemangiopericytoma / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000473:pathology* / Q000601:surgery