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Craniopharyngioma is a type of brain tumor derived from pituitary gland embryonic tissue, that occurs most commonly in children but also in men and women in their 50s and 60s. People may present with bitemporal inferior quadrantanopia leading to bitemporal hemianopia, as the tumor may compress the optic chiasm. It has a point prevalence of approximately 2/100,000. Craniopharyngiomas are also known as Rathke pouch tumors, hypophyseal duct tumors, or adamantinomas. ==Signs and symptoms== Craniopharyngioma is a rare, usually suprasellar neoplasm, which may be cystic, that develops from nests of epithelium derived from Rathke's pouch.〔(【引用サイトリンク】title=Endocrine Pathology )〕 Rathke's pouch is an embryonic precursor of the anterior pituitary. Craniopharyngiomas are typically very slow growing tumors. They arise from the cells along the pituitary stalk, specifically from nests of odontogenic (tooth-forming) epithelium within the suprasellar/diencephalic region and, therefore, contain deposits of calcium, which are evident on an x-ray. They are classified by histology as benign; however, as with many brain tumors, their treatment can be difficult, and significant morbidities are associated with both the tumor and treatment. * Balance disorder * Dry skin * Fatigue * Fever * Headache (obstructive hydrocephalus) * Hypersomnia * Lethargy * Myxedema * Nausea * Short stature * Polydipsia * Polyuria (diabetes insipidus) * Vision loss (bitemporal hemianopia) * Vomiting * Weight gain 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「craniopharyngioma」の詳細全文を読む スポンサード リンク
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