Posterior urethral valves in fraternal twins: case report and review of the literature

Abstract

We report a pair of dizygotic twins with type 1 posterior urethral valves. Concomitant and discordant presentation of posterior urethral valves in twins is rare, with a handful of cases in the literature. The occurrence of identical pathology in dizygotic twins probably suggests the possibility of an inherited trait as it does exist in monozygotic twins.

Keywords: fraternal twins, identical pathology, inherited trait, posterior urethral valves