Xanthogranulomatous pyelonephritis

Case contributed by Bruno Di Muzio
Diagnosis probable

Presentation

Diabetic patient presenting with left flank pain and fever.

Patient Data

Age: 65 years
Gender: Male

CT abdomen and pelvis

ct
Coronal
CT scout
Axial
non-contrast
This study is a stack
Axial C+ portal
venous phase
This study is a stack
C+ portal
venous phase
Download
Info

Large staghorn calculi in the left kidney collecting system. Renal calyces are dilated giving a multiloculated appearance. There is also a retroperitoneal collection that extends along the left iliac and psoas muscle.

Annotated image
Download
Info

Large staghorn calculi in the left kidney collecting system. Renal calyces are dilated giving a multloculated appearance. 

Case Discussion

Xanthogranulomatous pyelonephritis is a chronic destructive granulomatous process of renal parenchyma in association with long-term urinary tract obstruction and infection.

Clinical presentation includes flank or abdominal pain, lower urinary tract symptoms, fever, palpable mass, hematuria and weight loss.

This case shows a xanthogranulomatous pyelonephritis associated with staghorn calculus and complicated with extensive retroperitoneal abscess.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

:

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.