Abstract
A case of giant cyst formation in the ureter was diagnosed in the 36th week of gestation by ultrasono-graphic examination. The patient was born at 40 weeks of gestation in a normal delivery. Two giant cysts which occupied the area between the kidney and the bladder were found by US and CT. Preoperative diagnoses of a hypoplastic kidney on the right and hydronephrosis were made, but distal ureteral atresia associated with paravesical cyst was found at operation and later confirmed by histological examination. Distal ureteral atresia is a very rare deformity of the ureter. The literatures was reviewed.
