Jimer Bursa, Turkey.

Case report

This is a fetus with a classical "double bubble" sign of duodenal atresia. There was no associated aneuploidy.

Images 1, 2: Second trimester 2D ultrasonography. Images show transverse planes through fetal abdomen with "double bubble" sign of duodenal atresia.

Images 3, 4: Second trimester 2D ultrasonography. Image 3 shows a transverse plane through fetal abdomen with thin communication between the stomach and dilated duodenum. Image 4 shows a sagittal plane through fetal abdomen with dilated duodenum.