[Malformations of the fetal urinary tract of surgical significance. Diagnosis on the basis of pre- and post-natal imagings].

Out of the 29 cases of fetal urinary tract anomalies detected by sonography, the authors report on the 17 cases with potentially correctable malformations. A critical analysis of the diagnostic contribution offered by the radiologic and sonographic studies is presented. The role of ultrasound examination in the choice of a suitable investigation strategy is emphasized, underlining the importance of an accurate approach to avoid diagnostic errors and unuseful procedures. The indications for fetal and neonatal antegrade pyelography are discussed.