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Butterfly vertebra (also known as sagittal cleft vertebra) is a rare congenital spinal anomaly characterized by the presence of a sagittal cleft within a vertebral body, giving it a butterfly-like appearance on imaging. This condition arises due to incomplete fusion of the lateral halves of a vertebra during embryonic development.
Butterfly vertebrae have a sagittal cleft through the body of the vertebrae and a funnel shape at the ends. This gives the appearance of a butterfly on an x-ray. It is caused by persistence of the notochord (which usually only remains as the center of the intervertebral disc) during vertebrae formation. There are usually no symptoms.
The three categories treated for types of spinal cord deficiencies are massive fusion of the cervical spine (Type I), the fusion of 1 or 2 vertebrae (Type II), and the presence of thoracic and lumbar spine anomalies in association with type I or type II Klippel–Feil syndrome (Type III). [citation needed]
Bertolotti's syndrome is a commonly missed cause of back pain which occurs due to lumbosacral transitional vertebrae (LSTV). It is a congenital condition but is not usually symptomatic until one's later twenties or early thirties. [1] However, there are a few cases of Bertolotti's that become symptomatic at a much earlier age.
Diastematomyelia is a "dysraphic state" of unknown embryonic origin, but is probably initiated by an accessory neurenteric canal (an additional embryonic spinal canal.).) This condition may be an isolated phenomenon or may be associated with other segmental anomalies of the vertebral bodies such as spina bifida, kyphoscoliosis, butterfly vertebra, hemivertebra and block vertebrae which are ...
It is a congenital disorder in which the fetal development of the lower spine—the caudal partition of the spine—is abnormal. [1] It occurs at a rate of approximately one per 60,000 live births. [2] Some babies are born with very small differences compared to typical development, and others have significant changes.
Other skeletal defects common in ALGS patients are spina bifida and the fusion of vertebrae. [10] Most of the ophthalmological defects affect the anterior chamber of the eyeball, including Axenfeld's anomaly and Rieger anomaly, but retina pigment changes are also common. [10] These anomalies can be beneficial in diagnosing Alagille syndrome.
Ossification anomalies of the atlas (C1) Craniopharyngeal canal; Canalis basilaris medianus; Fossa navicularis magna; Transverse basilar fissure (Saucer’s fissure) Arcus praebasiocipitalis; Stafne bone cavity; Arcuate foramen; Ossiculum terminale (of dens) Os odontoideum; Intermediate condylar canal; Innominate canal of Arnold; Arcus ...