Revista OMICS de Radiologia

Abstrato

Leiomyosarcoma of the Renal Pelvis: Report of a Case and Review of the Literature

Een Young Cho, Jung-Hee Yoon and Woogyeong Kim

We report a case of leiomyosarcoma of the renal pelvis developed in 56-year-old man whom underwent MDCT scan presented with hematuria and left flank pain. There was a 7.8×7.6 cm heterogeneous enhanced mass filling in the left renal pelvis with necrotic portion and multiple dystrophic calcifications. The tumor measured about 6.8×5.5 cm in size composed of atypical spindle cells arising from the muscularis mucosa of the renal pelvis. The tumor cells were positive for smooth muscle actin, focal positive for desmin and myoglobin but negative for CD 117 (c-KIT), pancytokeratin and CD34. The histopathologic diagnosis was made as a leiomyosarcoma of the renal pelvis.