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[Double tumor pathology: simultaneous renal oncocytoma and colonic carcinoma].

We report a case of renal oncocytoma associated with adenocarcinoma of the colon. Although the preoperative evaluation had disclosed a mass in the superior pole of the left kidney, renal oncocytoma had not been suspected and the foregoing was diagnosed pathologically from the intraoperative biopsy. The association of renal oncocytoma and other extraurological tumors reported in the literature are reviewed and the diagnostic and therapeutic aspects are discussed.