ameloblastoma

(redirected from acanthomatous ameloblastoma)
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ameloblastoma

[‚am·ə·lō·bla′stō·mə]
(medicine)
An epithelial tumor associated with the enamel organ; cells of basal layers resemble the ameloblast. Also known as adamantinoma.
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Canine acanthomatous ameloblastoma (CAA) or acanthomatous epulis is a benign oral tumor of dogs and cats with locally invasive behavior.
Diminutive, interradicular "hybrid" desmoplastic/ acanthomatous ameloblastoma.
8,16) The present case was diagnosed as a hybrid ameloblastoma according to the diagnostic criteria established by Waldron and El-Mofty (10) as it showed histopathological features of the desmoplastic variant along with other variants like follicular, cystic, and acanthomatous ameloblastomas.
Krishna et al studied protein over expression (MDM2) in ameloblastoma and oral squamous cell carcinoma (OSCC) and found that the keratinizing cells of acanthomatous ameloblastoma showed less MDM2 reactivity as compared to high reactivity in OSCC which could be suggestive of terminal differentiation and non-proliferative phenotype of central cells.
Acanthomatous ameloblastoma is a rare variant of follicular ameloblastoma with squamous metaplasia.