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Spina Bifida Occulta MeSH Descriptor Data 2023


MeSH Heading
Spina Bifida Occulta
Tree Number(s)
C10.500.680.800.750
C16.131.666.680.800.750
Unique ID
D016136
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D016136
Scope Note
A common congenital midline defect of fusion of the vertebral arch without protrusion of the spinal cord or meninges. The lesion is also covered by skin. L5 and S1 are the most common vertebrae involved. The condition may be associated with an overlying area of hyperpigmented skin, a dermal sinus, or an abnormal patch of hair. The majority of individuals with this malformation are asymptomatic although there is an increased incidence of tethered cord syndrome and lumbar SPONDYLOSIS. (From Joynt, Clinical Neurology, 1992, Ch55, p34)
Entry Term(s)
Dermal Sinus
Occult Spina Bifida
Spinal Bifida, Closed
NLM Classification #
WE 730
Previous Indexing
Spinal Dysraphism (1966-1977)
Public MeSH Note
1991; was SPINA BIFIDA 1978-1990; for DERMAL SINUS see NEURAL TUBE DEFECTS 1979-1990
History Note
1991; was SPINA BIFIDA 1978-1990; for DERMAL SINUS use NEURAL TUBE DEFECTS 1979-1990
Date Established
1991/01/01
Date of Entry
1990/06/05
Revision Date
1999/12/08
Spina Bifida Occulta Preferred
Dermal Sinus Related
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