[Importance of ultrasonographic monitoring in renal malformations].

Routine ultrasound imaging in pregnancy reveals more abnormalities in the fetal urinary tract than any other system. The mild dilatation of the pelvi-caliceal system can be easily demonstrated approximately 80% of neonates with a prenatal diagnosis of uropathy shows neither symptom at birth. The follow-up study of four cases of mild fetal kidney abnormalities was taken to assess the postnatal morbidity of these children and to document the natural history of the ultrasound imaging.