Question

Ap pelvic diameter of right kidney measures 6.8 mm.Ap pelvic diameter of left kidney measures 4.2 mm

Answer 1

A fetal left or right renal pelvic AP diameter >4mm determined by ultrasound was considered by abnormal and a diameter < 4 mm was considered normal . A renal pelvic diameter of 4-6mm, 7 -10mm and >10mm was considered mile, moderate or severe hydronephrosis, respectively.