The so-called megaureter-megacystis syndrome.

Megaureter-megacystis describes the appearance of the urinary tract in children with massive primary vesicoureteric reflux and it sequellae. The initial symptoms, radiographic findings, diagnostic misconceptions, and treatment for 22 male children are discussed. Incorrect diagnoses, including obstruction, neurogenic bladder dysfunction, and "megacystis," were made in 16 children; treatment was inappropriate in 14. In only eight boys were diagnosis and treatment prompt and correct.