Congenital defects of closure of one or more vertebral arches, which may be associated with malformations of the spinal cord, nerve roots, congenital fibrous bands, lipomas, and congenital cysts. These malformations range from mild (e.g., SPINA BIFIDA OCCULTA) to severe, including rachischisis where there is complete failure of neural tube and spinal cord fusion, resulting in exposure of the spinal cord at the surface. Spinal dysraphism includes all forms of spina bifida. The open form is called SPINA BIFIDA CYSTICA and the closed form is SPINA BIFIDA OCCULTA. (From Joynt, Clinical Neurology, 1992, Ch55, p34)

Annotation

general or unspecified; prefer specifics

DUI

D016135 MeSH Browser

CUI

M0024641

History note

1991(1964); for SPINA BIFIDA use SPINA BIFIDA OCCULTA 1978-1990, use SPINAL DYSRAPHISM 1966-1970

Public note

1991; see STATUS DYSRAPHICUS 1964-90 ; for SPINA BIFIDA see SPINA BIFIDA OCCULTA 1978-1990, see SPINAL DYSRAPHISM 1966-1977