Cranioschisis
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Cranioschisis is a congenital defect characterized by partial or complete absence of cranial bones, leaving the brain exposed. This condition results from a delay in the closure of the cephalic end of the embryonic neural tube and is often associated with spinal bifida and anencephaly.
Encyclopedia entry (1928–1936)
CRANIOSCHISIS, kraniokhiz (from Greek cranion - skull and schizo- I split), splitting of the skull, a deformity characterized by the partial or complete absence of the bones of the cranial vault (mainly occipital, parietal, frontal) with the brain being exposed to varying degrees. C. is the result of a delay in the process of closure of the cephalic end of the dorsal cavity of the embryo, which leads to underdevelopment of the bones of the cranial vault. C. is often associated with splitting of the spine (see Rhachischisis). High degrees of C. are usually observed simultaneously with underdevelopment of the brain of the anencephaly type. (See also Acrania; Skull, development.)
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Cite this page
“Cranioschisis.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/cranioschisis/