craniopharyngioma (redirected from Craniopharyngiomas)

craniopharyngioma /cra·nio·pha·ryn·gi·o·ma/ (kra″ne-o-fah-rin″je-o´mah) a tumor arising from cell rests derived from the infundibulum of the hypophysis or Rathke's pouch.

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cra·ni·o·pha·ryn·gi·o·ma (krn--f-rnj-m, -frn-j-)

n.

A tumor of the brain that develops from the epithelium derived from Rathke's pouch and usually affects children.

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Craniopharyngioma

A tumor near the pituitary gland in the craniopharyngeal canal that often results in intracranial pressure.

Mentioned in: Pituitary Dwarfism

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craniopharyngioma

[krā′nē·ōfərin′jē·ō′mə] pl. craniopharyngiomas, craniopharyngiomata,

a congenital pituitary tumor, appearing most often in children and adolescents, that arises in cells derived from Rathke's pouch or the hypophyseal stalk. The lesion, a solid or cystic body ranging in size from 1 to 8 cm, may expand into the third ventricle or the temporal lobe and frequently becomes calcified. The tumor may interfere with pituitary function, damage the optic chiasm, disrupt hypothalamic control of the autonomic nervous system, and cause hydrocephalus. Increased intracranial pressure, severe headaches, vomiting, stunted growth, defective vision, irritability, somnolence, and infantile genitalia are often associated with the lesion in children. Development of the tumor after puberty usually results in amenorrhea in women and loss of libido and potency in men. Also called ameloblastoma, craniopharyngeal duct tumor, pituitary adamantinoma, Rathke's pouch tumor.

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craniopharyngioma (krā´nē-ōfrin´jēō´m),

n a tumor histologically identical to ameloblastoma that arises from remnants of the craniopharyngeal duct.

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craniopharyngioma

a benign tumor arising from the cell rests derived from the infundibulum of the hypophysis or Rathke's pouch. Usually seen in young animals, they grow slowly. Their effects may be seen as a hypopituitarism, cranial nerve deficits or central nervous system dysfunction.

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craniopharyngioma

Neurology A benign 1º pituitary tumor that is often functionally active, secreting ↑ pituitary hormones–eg, hGH, causing gigantism–if prepubertal and acromegaly—in adults; they comprise < 5% of brain tumors of children Clinical Changed vision, headache, weight gain Treatment Surgery + RT. See Histologically benign.