Xanthogranulomatous pyelonephritis with perinephric abscess

Case contributed by Dr Gustavo Aguiar

Presentation

Left loin pain and fever.

Patient Data

Age: 40 years
Gender: Female

The parenchyma of left kidney is thinned with large rounded radiolucencies. It contains a large staghorn calculus. A perinephric abscess extending through the posterior pararenal space invovling the psoas muscle is also noted.

There are multiple small stones in the gallbladder (gallstones).

MRI demonstrates an enlarged left kidney with thinned parenchyma, large cystic components and a staghorn calculus. The perinephric abscess extending through the posterior pararenal space involving psoas muscle is better showed.

Gallstones are also noted.

Case Discussion

This case demonstrates imaging findings of xanthogranulomatous pyelonephritis complicated by perinephric abscess involving psoas muscle.

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Case information

rID: 70961
Published: 12th Sep 2019
Last edited: 13th Sep 2019
System: Urogenital
Inclusion in quiz mode: Included
Institution: Clínica Villas Boas

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