Simultaneous occurrence of prostatic adenocarcinoma and renal cell carcinoma is well documented in the literature. However, metastatic prostatic adenocarcinoma in a kidney harboring a renal cell carcinoma (RCC) is quite rare. Although renal cell carcinoma is the most common tumor that can harbor metastasis, metastatic prostatic adenocarcinoma in a kidney harboring a RCC is quite rare. There are four cases in the literature showing metastasis of prostatic adenocarcinoma to RCC. However, as per our knowledge, this is the first case of a collision between RCC and metastatic prostatic adenocarcinoma.
Monika Vyas, Santosh Menon, Sangeeta B Desai. Collision tumor of kidney: A case of renal cell carcinoma with metastases of prostatic adenocarcinoma. Indian journal of medical and paediatric oncology : official journal of Indian Society of Medical & Paediatric Oncology. 2013 Jan;34(1):21-3
PMID: 23878482
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