Metastatic renal cell carcinoma arising in a congenital solitary kidney. Treatment with interferon-containing combinations. A case report and a review of the literature.

Renal Cell Carcinoma (RCC) in a single kidney is a rare occurrence, more so when it concerns agenesis of the kidney. Chemotherapy of metastatic renal cell carcinoma has a poor effect. We report a case of a man, 49 years of age, with agenesis of one kidney, admitted with a metastatic RCC of his only kidney. Survival of 15 months duration was achieved by therapy combining Provera, Vinblastine and Alpha-C-Recombinant Interferon.