Xanthogranulomatous pyelonephritis - stage III

Case contributed by Dr Hidayatullah Hamidi


Chronic right flank pain.

Patient Data

Age: 40 years
Gender: Male

Normal right kidney is not seen and is almost completely destroyed with significant surrounding fat stranding and fibrotic tissue formation extending to the perirenal and pararenal spaces.  Abnormal collection (8.9 cm x 5.5 cm x 8 cm) in the right peri-renal region abutting the postero-lateral abdominal wall. Another collection is seen superior to the renal lodge in the sub-hepatic region measuring 4.6 cm x 4.3 cm x 4.7 cm.

This abnormal collection and fibrotic tissue is closely abutting the second part of the duodenum and the ascending colon with possible fistulation with the duodenum. Large radio-dense stone is noted at the region of the right renal pelvis with few other calcifications.

Case Discussion

The features represent chronic xanthogranulomatous pyelonephritis stage III with possible fistulation to the duodenum.

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Case information

rID: 66780
Published: 6th Mar 2019
Last edited: 14th Aug 2019
System: Urogenital
Inclusion in quiz mode: Excluded

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