Favorable long-term outcome in adult genitourinary low-grade sarcoma.

Objectives. To report our experience treating sarcomas in 20 consecutive patients. Methods. Pretreatment and follow-up data were obtained from 20 adult patients consecutively treated between 1992 and 1998 for primary or locally recurrent genitourinary sarcoma. Results. Eight patients (40%) were classified as having high-grade and 12 (60%) low-grade disease. Except for 3 patients, the primary treatment was surgery alone. The median follow-up was 52 months. The actuarial disease-specific 5-year survival rate was 84% in all patients and was 100% for patients with Memorial Sloan Kettering Cancer Center (MSKCC) Stages 1-2 and 54% in MSKCC Stages 3-4. The disease-specific survival was significantly better in low-grade tumors (log-rank test, P = 0.0063) and inguinal-scrotal tumors (P = 0.019), tumors 5 cm or less (P = 0.039), and MSKCC Stages 1-2 tumors (P = 0.0035). Conclusions. The results of this study with a high proportion of low-grade, low-stage, and inguinal-scrotal sarcomas demonstrate the favorable prognosis of these subgroups. UROLOGY 56: 373-377, 2000. (C) 2000, Elsevier Science Inc.