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Int J Radiat Oncol Biol Phys. 1991 Sep;21(4):1099-103.

Outcome for lymph node dissection negative T-1b, T-2 (A-2,B) prostate cancer treated with external beam radiation therapy in RTOG 77-06.

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Department of Radiation Oncology, University of Pennsylvania/Fox Chase Center, Philadelphia 19111.


One hundred four patients with stage T-1b, T-2 N-O M-O prostate cancer were treated with external beam irradiation as part of RTOG 77-06. Lymph nodes were negative by lymph node dissection in 16 patients with T-1b and 88 patients with T-2 cancers. Survival exceeds age matched expected survival for the 10 years of observation (63% vs 59% at 10 years). Patterns of failure at 10 years show 87% of patients were free of isolated local recurrence, 79% free of metastatic failure, 67% free of any failure, and cause specific survival shows 86% free of cancer death at 10 years. The outcome of this group is equal or superior to reports of radical prostatectomy in similar stage patients.

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