Primary renal sarcoma

Primary renal sarcoma represents approximately 1 per cent of all primary tumors of the kidney. The purpose of this study is to review the experience at Roswell Park Cancer Institute with the treatment of primary renal sarcoma. Four patients with a diagnosis of primary renal sarcoma admitted from 1976 to 1983 form the basis of this review. All patients underwent radical nephrectomy. The tumor was localized in two patients, and locally invasive in two patients. All patients had recurrence of metastatic disease. Patients with localized disease recurred at 19.0 and 25.0 months respectively. Patients with invasive disease recurred at 4.0 and 5.0 months respectively. Patients presenting with localized disease survived a mean of 34.0 months. Patients presenting with invasive disease died at 6.0 and 10.0 months from time of diagnosis. Primary renal sarcoma is a rare entity. Only patients presenting with localized disease have a reasonable chance for prolonged survival.