title: Perinephric xanthogranulomatous pyelonephritis simulating a renal or retroperitoneal tumor on X-ray CT and angiography.
abstract: A case of perinephric xanthogranulomatous pyelonephritis is presented. Ultrasonography and X-ray computed tomography (X-CT) showed a mass on the posterior aspect of the right kidney, causing us to suspect right renal cell carcinoma. Pyelography showed a deformity of the right renal calyces. From angiographic results, we considered the possibility of hypovascular renal cell carcinoma, subcapsular tumor, or retroperitoneal tumor. The mass was diagnosed pathologically as perinephric xanthogranulomatous pyelonephritis.
authors.affiliation: Department of Radiology, Fukui Medical School, Japan.
authors.forename: I
authors.initials: I
authors.lastname: Kimura
authors.forename: N
authors.initials: N
authors.lastname: Takahashi
authors.forename: R
authors.initials: R
authors.lastname: Okumura
authors.forename: K
authors.initials: K
authors.lastname: Yamashita
authors.forename: N
authors.initials: N
authors.lastname: Hayashi
authors.forename: K
authors.initials: K
authors.lastname: Hayakawa
authors.forename: D
authors.initials: D
authors.lastname: Hamanaka
authors.forename: T
authors.initials: T
authors.lastname: Odori
authors.forename: Y
authors.initials: Y
authors.lastname: Ishii
authors.forename: Y
authors.initials: Y
authors.lastname: Suzuki
mesh_terms: D000792:Angiography; D002292:Carcinoma, Renal Cell / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007668:Kidney / Q000473:pathology; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011705:Pyelonephritis, Xanthogranulomatous / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000473:pathology; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed