[Prune belly syndrome. Etiopathogenic considerations in 4 cases]

Four cases of prune belly syndrome of 19, 24, and 32 weeks of gestational age, and 14 days of postnatal life are described. All of them show urethral atresia, muscle defects of abdominal wall and undescended testes. Analysis of these four cases at different developmental stages brings authors to approach etiopathogenic basis of this syndrome.