Retroperitoneal liposarcoma

Case contributed by Dr Mohamed Hossam el Deen


The primary complaint was a reducible umbilical protrusion for seven months. Ultrasound incidentally revealed a huge mass, CT was done later on.

Patient Data

Age: 63
Gender: Male

In homogenous intra-abdominal huge mass with degenerative calcifications.


There is right side sub hepatic huge retroperitoneal fat/solid mass with septations and calcifications. The mass displaces the intra-abdominal structures including the right kidney, liver and the gut.  There is also mass induced umbilical hernia and a right sided inguinal omentocele. 

Case Discussion

Sagittal and axial image demonstrated clear separation between the mass and the kidney excluding angiomyolipoma (AML). Also excess lipid components excluded neurogenic tumors like schwannoma. In addition presence of calcification supported the diagnosis of liposarcoma rather than lipomyosarcoma, in which calcifications is a rare finding. 

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Case information

rID: 47742
Published: 1st Sep 2016
Last edited: 2nd Sep 2016
Inclusion in quiz mode: Included

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