what is a butterfly vertebrae
Butterfly vertebra is a rare congenital anomaly associated with syndromes such as Pfeiffer, Jarcho-Levin, Crousen, Alagille. In the literature, only a few cases of butterfly vertebra have been reported as incidental finding.. Discussion. A butterfly vertebra is said to be the result of a sagittal cleft caused by the persistence of the notochord. It is often associated with rib and/or vertebral anomalies such as bars, supernumerary lumbar vertebrae, and spina bifida [9] .