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Sella turcica region from a human trisomy 18 fetus

Sagittal section of a sella turcica region from a human trisomy 18 fetus, 19 weeks of gestation. Anterior direction is left. (A) toluidine blue; (B) immunohistochemical reaction to thyroid-stimulating hormone. Adenopituitary tissue is marked by arrows. Note the adenopituitary tissue (positive thyroid-stimulating hormone reaction) in the sella turcica and in the pharyngeal submucosa.

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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