This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Craniorachischisis is the most severe type of neural tube defect in which both the brain and spinal cord remain open; both anencephaly and spina bifida (from the cervical region to the lumbar or sacral region of the spine) are present. Fetuses with craniorachischisis often miscarry during pregnancy or die shortly after birth. The cause is thought to be multifactorial, which means that a combination of genetic and non-genetic factors play a role.
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