Spina bifida Alaattin Kacar, MD; Mehmet Ince, MD; Mehmet Akif Sanli; Burhan Seker, MD Article Published: Jun 22, 2007 Balikesir, Turkey. These are some images of a fetus with lumbar spina bifida Images 1, 2: Transverse scans through the fetal skull. Image 1 shows an abnormal shape of the skull "lemon sign". Image 2 shows curved cerebellum "banana sign". Images 3, 4: Coronal and transverse scans of the fetal spine showing spina bifida at the level of lumbar spine. Image 5: Detailed coronal scan of the fetal spine showing spina bifida. Â Â Discussion Board Start a discussion about this article Add bookmark Bookmarked