Renal replacement lipomatosis

Case contributed by Dr Ayush Goel


Left flank pain.

Patient Data

Age: 40 years
Gender: Male

Left renal parenchymal destruction with multiple calculi and renal replacement lipomatosis. A track is seen extending from residual left renal tissue extending inferiorly to left psoas forming a collection. Few dense foci noted in the collection suggestive of calculus migration through the track. 

Case Discussion

Renal replacement lipomatosis is a rare condition characterized by fatty tissue proliferation in renal sinus and perinephric space with marked destruction/atrophy of renal parenchyma (due to chronic inflammation).

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Case information

rID: 45406
Published: 24th May 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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