Cranioschisis

Cranioschisis (Greek: κρανιον kranion, "skull", and σχίσις schisis, "split"), or dysraphism, is a neural tube defect involving the skull. In this defect, the cranium fails to close completely (especially at the occipital region). Thus, the brain is exposed to the amnios and eventually degenerates, causing anencephaly.

Craniorachischisis is on the extreme end of the dysraphism spectrum, wherein the entire length of the neural tube fails to close.^[1]

References

↑ Larsen's Human Embryology (5 ed.). Churchill Livingstone. 2015. pp. 81–107.

Congenital malformations and deformations of musculoskeletal system / musculoskeletal abnormality

Appendicular
limb / dysmelia

Arms

clavicle / shoulder	Cleidocranial dysostosis Sprengel's deformity Wallis–Zieff–Goldblatt syndrome
hand deformity	Madelung's deformity Clinodactyly Oligodactyly Polydactyly

Leg

hip	Hip dislocation / Hip dysplasia Upington disease Coxa valga Coxa vara
knee	Genu valgum Genu varum Genu recurvatum Discoid meniscus Congenital patellar dislocation Congenital knee dislocation
foot deformity	varus Club foot Pigeon toe valgus Flat feet Pes cavus Rocker bottom foot Hammer toe

Either / both

fingers and toes	Polydactyly / Syndactyly Webbed toes Arachnodactyly Cenani–Lenz syndactylism Ectrodactyly Brachydactyly Stub thumb
reduction deficits / limb	Acheiropodia Ectromelia Phocomelia Amelia Hemimelia
multiple joints	Arthrogryposis Larsen syndrome RAPADILINO syndrome

Axial

Skull and face

Craniosynostosis	Scaphocephaly Oxycephaly Trigonocephaly
Craniofacial dysostosis	Crouzon syndrome Hypertelorism Hallermann–Streiff syndrome Oto-palato-digital syndrome Treacher Collins syndrome
other	Macrocephaly Platybasia Craniodiaphyseal dysplasia Dolichocephaly Greig cephalopolysyndactyly syndrome Plagiocephaly Saddle nose

Vertebral column

Thoracic skeleton

ribs:	Cervical Bifid
sternum:	Pectus excavatum Pectus carinatum

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Cranioschisis

See also

References