Antenatal imaging: A pictorial review

Figure 17  Spinal dysraphism. A-C: On ultrasonography, spina bifida was seen in the vertebral column at the lumbar-sacral level (arrows); D: There were lemon sign characterized by angulation in the bilateral frontoparietal suture (arrows); E: Additionaly, there were bilateral mild ventriculomegaly (diameters); F: There were banana sign (arrows) in the posterior fossa.