Leiomyosarcoma of kidney.

The case of a seventy-one-year-old woman with leiomyosarcoma of the kidney capsule is presented. Despite lack of invasion into surrounding tissues and few mitoses, the tumor recurred thirteen months after nephrectomy. A full subjective response and an almost complete objective regression lasting eight months were achieved using a short course of combination chemotherapy. The literature on leiomyosarcoma of the kidney is reviewed.