Newborn with prenatal hydronephrosis in the left kidney Pediatric Imaging Genitourinary March 5, 2019July 16, 2019 4 hour delayed image from an IVP exam shows an extremely dilated left renal collecting system. The left ureter is not seen. The diagnosis was left sided ureteropelvic junction obstruction. Related Published March 5, 2019July 16, 2019
