Xanthogranulomatous pyelonephritis: an uncommon pediatric renal mass.
Xanthogranulomatous pyelonephritis (XGP) is a chronic suppurative infectious process that only rarely affects pediatric patients, and most commonly occurs in the setting of a large obstructing calculus. Histologically, XGP is characterized by the presence of chronic inflammation and lipid-laden macrophages. This case report illustrates the radiological, surgical, and pathologic findings in a young patient who presented to our institution for treatment of this uncommon condition. Although rare, xanthogranulomatous pyelonephritis is a clinically important entity that can affect pediatric patients. This condition should be considered in the differential diagnosis for an atypical-appearing renal mass.
Department of Radiology, University of Michigan Health System, C. S. Mott Children's Hospital, 1500 E. Medical Center Dr., Ann Arbor, MI 48103, USA. ethans@med.umich.edu
Ethan A
EA
Smith
Nicholas
N
Styn
Julian
J
Wan
Jonathan
J
McHugh
Jonathan R
JR
Dillman
D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging* / Q000473:pathology*; D011705:Pyelonephritis, Xanthogranulomatous / Q000000981:diagnostic imaging* / Q000473:pathology*; D014463:Ultrasonography