Congenital posterior urethral valve

What it means

A developmental defect resulting in an obstructing membrane in the posterior male urethra.

Congenital posterior urethral valve is a cause of bladder outlet obstruction in male newborns. It results from a failure of resorption of the caudal end of the Wolffian duct into the primitive cloaca at the site of the future verumontanum in the posterior urethra (Following normal resorption of the posterior urethral valve there remain the posterior urethral folds, also called plicae colliculi).

Rare diseases that can present with this6

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Congenital obstructing posterior urethral membranes · COPUM · Posterior urethral valve · Posterior urethral valves