[And there was Zinner's syndrome-a rare differential diagnosis].

Zinner's syndrome is a rare congenital abnormality of the Wolffian ducts in male patients. It consists of the triad of renal agenesis, ipsilateral seminal vesicle dilatation, and obstruction of the ejaculatory duct. Symptoms often occur after puberty and can include hematospermia, painful ejaculation, dysuria, and local discomfort. We present the case of a 15-year-old patient with this rare condition who was treated surgically after the diagnosis was confirmed.