[Papillary Adenocarcinoma in a Seminal Vesicle Cyst Associated with Contralateral Renal Agenesis: a Case Report].

We report a case of papillary adenocarcinoma inside a seminal vesicle cyst associated with contralateral renal agenesis in a 30-year-old man. Coexistence of a seminal vesicle cyst and tumors is rare. Surgical excision was performed but he died due to liver metastases one year later.