Fewer than 1% of patients with renal cell carcinoma are reported to experience spontaneous regression of metastatic lesions after nephrectomy. We report on 4 of 91 patients (4.4%) with metastatic renal cell carcinoma who had spontaneous regression of all metastatic lesions after cytoreductive nephrectomy. These patients were carefully selected before surgery for the ability to receive high dose interleukin-2. One patient had recurrence at 2 months, 1 had recurrence at 11 months, and 2 had no evidence of disease at 3 and 4.5 years.
- carcinoma, renal cell
- neoplasm metastasis
- neoplasm regression, spontaneous
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