Focal xanthogranulomatous pyelonephritis with associated bone metaplasia.
Focal xanthogranulomatous pyelonephritis of the left lower pole was accidentally discovered in a 34-year-old woman at sonography. The patient had no history of stones and urinary tract infection and both conventional radiology and CT scan revealed radiated calcifications within a well-circumscribed mass. Surgical treatment consisted of enucleoresection of the lesion, and histopathology revealed a nucleus of bone metaplasia. To the best of our knowledge, metaplastic bone formation has never been documented before with xanthogranulomatous pyelonephritis.
Selli
C
C
Department of Urology, University of Udine, Italy.
De Antoni
P
P
Moro
U
U
Crisci
A
A
Bartoletti
R
R
Scott
C A
CA
D000328:Adult; D001842:Bone and Bones / Q000473:pathology*; D005260:Female; D006801:Humans; D008679:Metaplasia / Q000209:etiology; D011705:Pyelonephritis, Xanthogranulomatous / Q000150:complications*