Singh E O, Benson R C, Wold L E
J Urol. 1984 Aug;132(2):340-2. doi: 10.1016/s0022-5347(17)49619-4.
The development of another separate primary cancer in a patient with 1 malignant tumor is not uncommon but metastasis of a malignant donor tumor to a different host tumor is extremely rare. Most recipient tumors have been primary renal cell carcinomas. We report a case of metastasis of a malignant melanoma to a renal cell carcinoma.