ameloblastoma (redirected from melanotic ameloblastoma)

ameloblastoma /am·e·lo·blas·to·ma/ (-blas-to´mah) a usually benign but locally invasive neoplasm of tissue of the type characteristic of the enamel organ, but which does not differentiate to the point of enamel formation.

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melanotic ameloblastoma  melanotic neuroectodermal tumor.

pituitary ameloblastoma  craniopharyngioma.

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am·e·lo·blas·to·ma (m-l-bl-stm)

n.

A benign tumor, usually of the posterior regions of the mandible, composed of epithelial cells that resemble enamel-producing cells but do not form enamel. Also called adamantinoma.

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ameloblastoma

[am′əlōblastō′mə]

Etymology: OFr, amel + Gk, blastos, germ, oma

a rare, highly destructive, benign, rapidly growing tumor of the jaw. Also called adamantinoma, adamantoblastoma, epithelioma adamantinum.

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ameloblastoma (am´lōblastō´m),

n an epithelial neoplasm with a basic structure resembling the enamel organ and suggesting derivation from ameloblastic cells. It is usually benign but aggressive. Also called
adamantinoblastoma or
adamantinoma.

ameloblastoma, acanthomatous,

n a type that differs from the simple form in that the central cells within the cell nests are squamous and may be keratinized rather than stellate. The peripheries of the cell nests are composed of ameloblastic cells. See also ameloblastoma.

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ameloblastoma

a locally invasive, highly destructive tumor of the jaw consisting of proliferating odontogenic epithelium in a fibrous stroma.

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pituitary ameloblastoma

see craniopharyngioma.

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ameloblastoma

Adamantinoma A locally-aggressive, but almost invariably benign tumor that arises from the odontogenic epithelium in a fibrous stroma of the mandible or maxilla, which is most common in ♂ in the 4^th decade Treatment Wide local excision; may recur