Incidental detection of Zinner syndrome in a patient with nonseminomatous germ cell tumor of testis.

Zinner syndrome is a rare congenital abnormality occurring in males comprising a triad of unilateral renal agenesis, ipsilateral ejaculatory duct obstruction, and seminal vesicle cyst. Most patients remain asymptomatic, and some may present with lower urinary tract symptoms or infertility. We present a case of incidentally detected Zinner syndrome in a patient with nonseminomatous germ cell tumor of testis, an association that is not reported in literature to our knowledge.