[Meconium peritonitis: description of 3 cases with abnormal prenatal ultrasound findings].

We describe three children with surgically confirmed meconium peritonitis. All had abnormal prenatal ultrasonographic examinations. The first child showed multiple cysts, the second had hydrops fetalis, and the third had dilated bowel loops. A polyhydramnion was common to all three cases. Of the two children who died, one had cystic fibrosis. It is remarkable that the ultrasonographic findings were different in the three children.