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Central nervous system and surrounding axial skeleton in human fetus

The central nervous system (yellow) and the surrounding axial skeleton in a human fetus (17 weeks' gestation). The notochord (red) is surrounded by the spine, the basilar part of the occipital bone, and the postsphenoid part of the sphenoid body (black). The axial craniofacial skeleton (green) and the thecal skeleton (black). The sella turcica and pituitary gland are located where the black and yellow skeleton fuse in the postsphenoid part of the sphenoid body. The rostral end of the notochord appears close to the sella turcica. (Reproduced with permission. Acta Odontol Scand 1995;53:135-43).

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Associated Disorders

  • Anencephaly
  • CHARGE syndrome
  • Cleft lip and palate
  • Duplication of pituitary stalk
  • Ectopic neurohypophysis
  • Empty sella syndrome
  • Holoprosencephaly
  • Hypertelorism
  • Midfacial anomalies
  • Myelomeningocele
  • Pallister-Hall syndrome
  • Pituitary agenesis
  • Pituitary aplasia
  • Pituitary dysplasia
  • Pituitary ectopia
  • Pituitary hypoplasia
  • Rachischisis
  • Rathke cleft cyst
  • Rieger syndrome
  • Rubinstein-Taybi syndrome
  • Septo-optic dysplasia
  • Solitary maxillary central incisor
  • Spina bifida