ureterocele fetal ultrasound

There is a well-defined, thin-walled, rounded anechoic lesion of 5 mm seen in fetal urinary bladder; causing ‘ bladder in bladder ‘ appearance. It is on the left side of the bladder. There is no overdistension of the urinary bladder.

Both fetal kidneys are present (craniocaudal length: right kidney 24 mm; left kidney, 26 mm). No obvious duplication or hydronephrosis is seen on either side. Renal arterial flow was seen on color Doppler on both sides.