title: Computed tomography manifestations of renal hemangiopericytoma.
abstract: Renal hemangiopericytoma (HPC) is a rare tumor. There are no unique radiological findings that can reliably aid in its preoperative diagnosis. A 60-year-old Japanese male was admitted for an abdominal mass. Ultrasound revealed a heterogeneous hyperechoic mass. Computed tomography (CT) showed a heterogeneous mass and tumor vascularity by a precontrast and dynamic study with maximum intensity projection (MIP) and volume-rendering technique (VRT). Radical nephrectomy was performed, and the histopathogic diagnosis revealed renal HPC.
authors.affiliation: Departments of Radiology and Urology, National Center Hospital for Geriatric Medicine, Ohbu, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Hayasaka
authors.forename: T
authors.initials: T
authors.lastname: Nihashi
authors.forename: Y
authors.initials: Y
authors.lastname: Nojiri
authors.forename: K
authors.initials: K
authors.lastname: Okamuara
mesh_terms: D000792:Angiography / Q000379:methods; D006393:Hemangiopericytoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography