Medical Subject Headings

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/MESH/D009436
http://purl.bioontology.org/ontology/MESH/D009436
Preferred Name

Neural Tube Defects

Definitions
Congenital malformations of the central nervous system and adjacent structures related to defective neural tube closure during the first trimester of pregnancy generally occurring between days 18-29 of gestation. Ectodermal and mesodermal malformations (mainly involving the skull and vertebrae) may occur as a result of defects of neural tube closure. (From Joynt, Clinical Neurology, 1992, Ch55, pp31-41)
Synonyms
Diastematomyelias
Spinal Dysraphisms, Occult
Dysraphism, Occult Spinal
Exencephaly
Neural Tube Developmental Defects
Diastematomyelia
Neurenteric Cysts
Developmental Neural Tube Defects
Exencephalies
Craniorachischises
Occult Spinal Dysraphism Sequence
Craniorachischisis
Defect, Neural Tube
Myelodysplasias, Spinal Cord
Acranias
Iniencephaly
Neurenteric Cyst
Occult Spinal Dysraphisms
Neuroenteric Cysts
Developmental Defects, Neural Tube
Tethered Spinal Cord Syndrome
Cyst, Neurenteric
Neural Tube Defect
Acrania
Tethered Cord Syndromes
Cysts, Neurenteric
Defects, Neural Tube
Dysraphisms, Occult Spinal
Spinal Cord Myelodysplasia
Myelodysplasia, Spinal Cord
Spinal Dysraphism, Occult
Occult Spinal Dysraphism
Cysts, Neuroenteric
Cyst, Neuroenteric
Tethered Cord Syndrome
Spinal Cord Myelodysplasias
Iniencephalies
Neuroenteric Cyst
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