Congenital megaureter

What it means

A developmental disturbance with extreme ureteral dilatation.

The cause of congenital megaloureter is thought to be aperistalsis of the distal ureter, leading to dilatation. The defect in peristalsis may be due to faulty development of muscle layers of ureter, that is, there is a functional, not a mechanical cause of obstruction.

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 megaloureter · Primary megaloureter · Primary megaureter