Paraureteral diverticula: clinical experience with 17 cases with associated renal dysmorphism.

We report our experience with 17 cases of paraureteral diverticula seen in the last 12 years. These 17 cases represent a particular group of patients with ureteral reflux in that they often had ureteral obstruction too. Early operative intervention is recommended. There is a trend towards renal dysmorphism and dysplasia as the position of the ureteral orifice laterlizes in the diverticulum. A paraureteral diverticulum was considered to be the developmental extravesical expansion of the terminal ureteral end by virtue of the caudally positioned ureteral bud in the wolffian duct.