An Unusual Presentation of Xanthogranulomatous Pyelonephritis and its Management by Nephron-Sparing Surgery

Xanthogranulomatous pyelonephritis has been coined as “the great imitator” as it is associated with a wide range of atypical presentations. We report yet another atypical presentation as a focal renal neoplasm in a young patient. The definitive diagnosis was derived only after histopathological examination.