[Multiple, giant retroperitoneal space lipomas]

A case is presented of multiple retroperitoneal lipoma in a 59-year-old woman, displacing the left kidney to the right side. The dimensions of four tumours exceeded significantly the expected size determined in USG examination. The authors believe that in view of the size of the tumours, their multiplicity, and histological pleomorphism the patient requires further careful observation despite radical excision of the lesion.