title: Xanthogranulomatous pyelonephritis in a 1-year old boy.
abstract: Xanthogranulomatous pyelonephritis (XGP) is a rare, chronic inflammatory lesion of the kidney associated with both chronic infection and obstruction. Most common in middle-aged females, it is important to recognize in children because it may be confused with childhood renal malignancies particularly Wilms' tumor. We report a case of a 1-year old male with antenatally detected and postnatally confirmed hydronephrosis. Further investigation revealed a left incomplete duplex collecting system with obstructing lower pole stones, pelvicaliectasis and widespread foci of calcification. He underwent a left nephroureterectomy with the pathological report noting XGP.
authors.affiliation: Division of Pediatric Urology, BC Children's Hospital, Vancouver, British Columbia, Canada.
authors.forename: Derek P
authors.initials: DP
authors.lastname: Ottem
authors.forename: Andrew E
authors.initials: AE
authors.lastname: Macneily
authors.forename: Iain W
authors.initials: IW
authors.lastname: McAuley
mesh_terms: D006801:Humans; D007223:Infant; D008297:Male; D011705:Pyelonephritis, Xanthogranulomatous / Q000175:diagnosis*