Seminal vesicle hypoplasia with contralateral renal agenesis.

Renal agenesis is a rare condition of unknown etiology frequently seen together with ipsilateral seminal vesicle and vas deferens anomalies because of common embryologic development. However, no cases of contralateral seminal vesicle hypoplasia accompanying renal agenesis have previously been reported. We describe a case of contralateral seminal vesicle hypoplasia accompanying renal agenesis incidentally detected in a 27-year-old presenting to the urology clinic with pelvic pain.