RADIOLOGY: ABDOMEN: Case# 33947: LEIOMYOSARCOMA. 61-year-old female with elevated LFTs. 1. Large heterogeneously enhancing mass within the right retroperitoneal region, which is inseparable from the IVC and from the junction of the 2nd and 3rd portions of the duodenum. The mass is separated by a fat plane from the right kidney. The right adrenal appears normal. The findings are suggestive of a retroperitoneal leiomyosarcoma, possibly arising from the IVC. 2. Tumor thrombus within the IVC which extends from the inferior most aspect of the mass superiorly to the level of the liver. 3. Normal appearing adrenals bilaterally. 4. Multiple simple cysts within the kidneys bilaterally. 5. Probable small cyst within the liver.