craniopharyngioma

(redirected from Craniopharyngiomas)
Also found in: Dictionary, Encyclopedia.
Related to Craniopharyngiomas: Pituitary tumors

craniopharyngioma

 [kra″ne-o-fah-rin″je-o´mah]
a tumor arising from cell rests derived from Rathke's pouch or some other part of the pituitary gland, often destroying the gland and causing deficits of the pituitary hormones.

cra·ni·o·pha·ryn·gi·o·ma

(krā'nē-ō-fă-rin'jē-ō'mă),
A suprasellar neoplasm that may be cystic; develops from the nests of epithelium derived from Rathke pouch; the histologic pattern, similar to that observed in adamantinomas, consists of nesting of squamous epithelium bordered by radially arranged cells; frequently accompanied by calcium deposition; may occassionally have a papillary architecture microscopically.
[cranio- + pharyngio- + -oma]

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.

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.
enlarge picture
Craniopharyngioma

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.

cra·ni·o·pha·ryn·gi·o·ma

(krā'nē-ō-făr-in'jē-ō'mă)
A suprasellar neoplasm that develops from Rathke pouch; the histologic pattern consists of nesting of squamous epithelium bordered by radially arranged cells.
Synonym(s): Rathke pouch tumor.
[cranio- + pharyngio- + -oma]

craniopharyngioma

A brain tumour affecting mainly children and arising from persistent primitive cells in the region of the pituitary gland. It causes headaches, visual field loss and delayed physical and mental development. Treatment is by surgical removal.

Craniopharyngioma

A tumor near the pituitary gland in the craniopharyngeal canal that often results in intracranial pressure.
Mentioned in: Pituitary Dwarfism

Erdheim,

Jakob, Austrian physician, 1874-1937.
Erdheim disease - a disease of unknown cause that may be inherited and that predisposes to dissecting aneurysms. Synonym(s): cystic medial necrosis
Erdheim syndrome - acromegaly causing cervical stiffening and often associated with clavicular hypertrophy. Synonym(s): Scaglietti-Dagnini syndrome
Erdheim tumor - a suprasellar neoplasm, usually cystic, that develops from the nests of epithelium derived from Rathke pouch. Synonym(s): craniopharyngioma

Rathke,

Martin H., German anatomist, physiologist, and pathologist, 1793-1860.
Rathke bundles - muscular bundles on the lining walls of the ventricles of the heart. Synonym(s): trabeculae carneae
Rathke cleft cyst - an intrasellar or suprasellar cyst lined by cuboidal epithelium derived from remnants of Rathke pouch. Synonym(s): Rathke cyst
Rathke column
Rathke cyst - Synonym(s): Rathke cleft cyst
Rathke diverticulum - a tubular outgrowth of ectoderm from the stomodeum of the embryo. Synonym(s): pituitary diverticulum; Rathke pocket; Rathke pouch
Rathke duct
Rathke fold - two fetal folds of mesoderm.
Rathke pocket - Synonym(s): Rathke diverticulum
Rathke pouch - Synonym(s): Rathke diverticulum
Rathke pouch tumor - a suprasellar neoplasm, usually cystic, that develops from the nests of epithelium derived from Rathke pouch. Synonym(s): craniopharyngioma
Rathke punch

cra·ni·o·pha·ryn·gi·o·ma

(krā'nē-ō-făr-in'jē-ō'mă)
A suprasellar neoplasm that develops from the Rathke pouch.
Synonym(s): Rathke pouch tumor.
[cranio- + pharyngio- + -oma]

craniopharyngioma (krā´nē-ōfərin´jēō´mə),

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

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.
References in periodicals archive ?
Nursing Management of Childhood Craniopharyngiomas During the Acute and Chronic Phases
But unlike teratomas, Craniopharyngiomas contain a single layer of tissue.
A 41-year-old woman was diagnosed with craniopharyngioma in 2002.
Craniopharyngiomas usually present with effects of a sellar mass.
Craniopharyngiomas are the third most common pediatric brain tumor, accounting for approximately 10% of the total, and are the most common pediatric suprasellar tumor (Poretti, Grotzer, Ribi, Schonle, & Boltshauser, 2004).
53) Seventy percent to ninety percent of craniopharyngiomas (Figure 26) are seen in children with calcifications, and 30% to 40% of craniopharyngiomas are seen in adults who have calcifications.
A team of researchers at Aston University have been studying a tumour of the pituitary gland called Craniopharyngioma, which causes one in ten of all childhood brain tumours.
More common lesions of the the sella capable of causing optic compression include pituitary adenomas, craniopharyngiomas, metastic tumors, and arachnoid cysts.
Over eight years, neurosurgeons tracked patients who were operated on using either the endonasal transsphenoidal or the supraorbital route to remove craniopharyngiomas and meningiomas, two types of benign brain tumors that arise in the skull base area near the optic nerves and pituitary gland (the "master gland" for hormonal function).
Craniopharyngiomas arise from remnants of Rathke's pouch along the path of the craniopharyngeal canal.
Abstract: Craniopharyngiomas are rare, benign, suprasellar brain tumors that account for 1%-3% of all intracranial tumors.
Studies using a variety of monoclonal antibodies against operationally specific markers for macrophages have suggested that macrophages are present in tumors of the central nervous system (CNS) including astrocytomas, oligodendrogliomas, ependymomas, meningiomas, medulloblastomas, acoustic neuromas, craniopharyngiomas, hemangioblastomas, CNS lymphomas, and tumors metastatic to the CNS.