Concurrent occurrence of three neoplasms including non-Hodgkin's lymphoma,renal cell carcinoma and leiomyoma in the same kidney

A 53-year-old man with triple renal neoplasms in his left kidney presented. He was initially diagnosed intermediate grade non-Hodgkin's lymphoma (NHL) which involved gastrointestinal tract, left kidney, liver and pancreas. He underwent left nefrectomy because of a persistent renal mass after the com pletion of chemotherapy. The large renal mass revealed a renal cell carcino ma (RCC). Additionally, multiple small nodules of non-Hodgkin's lymphoma an d a solitary leiomyoma were observed.