Medical Imaging

UPJ Obstruction

Congenital UPJ Obstruction & Hydronephrosis
Congenital utero-pelvic junction (UPJ) obstruction & hydronephrosis. This image demonstrates severe hydronephrosis of the right kidney. Retrograde pyelography demonstrates an obstruction at the UPJ. The obstruction in this patient was congenital.

UPJ Obstruction