title: Evolving concepts in the diagnosis of xanthogranulomatous pyelonephritis.
abstract: Xanthogranulomatous pyelonephritis (XGP) is a rare inflammatory process of the kidney that results in focal or diffuse renal enlargement and nonexcretion. In the past, XGP often has been misdiagnosed as renal carcinoma. Newer investigative modalities and an increased awareness of XGP should make preoperative diagnosis possible. Thirty-two cases of XGP are presented, with emphasis on recent advances in radiographic approach to diagnosis.
authors.affiliation: Department of Radiology, University of North Carolina, Chapel Hill 27599-7510.
authors.forename: M D
authors.initials: MD
authors.lastname: Parker
authors.forename: R L
authors.initials: RL
authors.lastname: Clark
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D005260:Female; D006801:Humans; D007668:Kidney / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011705:Pyelonephritis, Xanthogranulomatous / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014513:Ureter / Q000000981:diagnostic imaging; D001743:Urinary Bladder / Q000000981:diagnostic imaging; D014567:Urography