Zinner Syndrome: The Diagnosis and Management of a Rare Urogenital Malformation.

This case highlights an atypical but important consideration in young males presenting with persistent gastrointestinal and/or genitourinary symptoms. Zinner syndrome (ZS) develops from embryologic maldevelopment of the distal mesonephric duct, resulting in ejaculatory duct atresia with consequent obstruction of the seminal vesicle and concomitant ureteral bud malformation, leading to renal agenesis/dysplasia. The lack of distinct clinical symptoms makes ZS a difficult diagnosis to reach: Abdominal pain and dysuria are often mistaken for prostatitis or cystitis.