Spina bifida occulta is one form of spinal dysraphism, a term used to refer to imcomplete formation of the midline structure of the dorsum. It is therefore related to all the other forms of spina bifida which have been described under different names, spina bifida aperta or cystica. The basic differences between spina bifida cystica and spinal bifida occulta result from the nature of their orig...

We present a pictorial review of MRI features of various closed spinal dysraphisms based on previously described clinicoradiological classification of spinal dysraphisms proposed. The defining imaging features of each dysraphism type are highlighted and a diagnostic algorithm for closed spinal dysraphisms is suggested.

Spina bifida, or spinal dysraphism, is a malformative pathology related to an anomaly in the development of nervous system, occurring during embryogenesis. The neural tube does not close properly around 28th day life and affects column cord. bifida characterised by damage system will generate handicaps varying degrees: neurological motor, sensory, cognitive, genito-phincter (bladder anorectal) ...

Although the association of spinal lumbosacral dysraphism and congenital spinal dermoid tumors is well known, the association of craniocervical spinal anomalies and posterior fossa dermoids has only been recognized recently. Advances in imaging technology and awareness of the association likely contribute to an increase in recently reported cases.