Retroperitoneal Sarcomas

Retroperitoneal sarcomas (excluding Kaposi) make up about 10% of all sarcomas. The most common retroperitoneal sarcomas are liposarcoma and leiomyosarcoma, which each make up about 30% of cases, followed by malignant fibrous histiocytoma (15%).

Reference

Mack TM. Sarcomas and other malignancies of soft tissue, retroperitoneum, peritoneum, pleura, heart, mediastinum, and spleen. Cancer 1995; 75(suppl 1):211-44.