“…[1] While in most cases, urological abnormalities are not detected during postnatal period, urinary system anomalies are seen more frequently in cases of progression of pyelectasis. [1,4,5,8,9] In compliance with the literature, the 4 cases in present study where antenatal pyelectasis progressed, urinary system anomalies were found, and 3 cases underwent surgical intervention. Also in parallel with the literature, [1,4,8,9] pyelectasis was detected more frequently in male fetuses, and the 4 cases with urinary anomalies were of male gender.…”