ameloblastoma


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ameloblastoma

 [ah-mel″o-blas-to´mah]
a locally invasive, highly destructive tumor of the jaw; called also adamantinoma.
pituitary ameloblastoma craniopharyngioma.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

am·e·lo·blas·to·ma

(am'ĕ-lō-blas-tō'mă),
A benign odontogenic epithelial neoplasm that histologically mimics the embryonal enamel organ but does not differentiate from it to the point of forming dental hard tissues; it behaves as a slowly growing expansile radiolucent tumor, occurs most commonly in the posterior regions of the mandible and tends to recur if inadequately excised.
[ameloblast + G. -oma, tumor]
Farlex Partner Medical Dictionary © Farlex 2012

ameloblastoma

A locally aggressive but almost invariably benign tumour that arises from the odontogenic epithelium in a fibrous stroma of the mandible or maxilla, which is more common in males in their 40s.
 
Management
Wide local excision; may recur.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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 4th decade Treatment Wide local excision; may recur
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

am·e·lo·blas·to·ma

(am'el'ō-blas-tō'mă)
A benign odontogenic epithelial neoplasm; it behaves as a slowly growing expansile radiolucent tumor, occurs most commonly in the posterior regions of the mandible, and has a marked tendency to recur if inadequately excised.
[ameloblast + G. -oma, tumor]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ameloblastoma

A BENIGN tumour arising from the tissue that gives rise to the tooth internal lining. Ameloblastomas usually occur in the lower jaw (mandible) and are also known as adamantinomas.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

am·e·lo·blas·to·ma

(am'el'ō-blas-tō'mă)
Benign odontogenic epithelial neoplasm that histologically mimics the embryonal enamel organ but does not differentiate from it to the point of forming dental hard tissues; behaves as a slowly growing expansile radiolucent tumor; occurs most commonly in the posterior regions of the mandible and tends to recur if inadequately excised.
[ameloblast + G. -oma, tumor]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Ameloblastic carcinoma showing the pattern of ameloblastoma but also cytonuclear atypia, which allows for the distinction between the entities (hematoxylin-eosin, original magnification X400).
A pathological evaluation of the resected tumor did not yield any malignant findings, and histopathological studies confirmed the findings of the preoperative biopsy; thus, the tumor was diagnosed as an ameloblastoma. Because we removed the mucosa of the middle ear cavity during surgery, the postoperative middle ear cavity did not receive sufficient pneumatization; therefore, no improvement in the conductive hearing loss was observed (Figure 4a).
When there is chronic infection, DC can develop into ameloblastoma or squamous cell carcinoma and mucoepidermoid carcinoma (8).
An observational study was done on 20 cases of Ameloblastoma (Unicystic and multicystic variants) and 20 cases of Odontogenic Keratocyst taken from archives of the Department.
Keratocystic odontogenic and ameloblastoma are preferably treated with surgical excision and resection, although marsuplization is a recommended option to save the vital structures in case of OKC.
Extraosseous or peripheral, which constitute about 5% of all ameloblastomas. PA occurs at a significant higher age than the intraosseous ameloblastoma, with a reported maximum incidence between the fifth and sixth decades of life.
Cases of ameloblastoma, epidermoid carcinomas, and squamous cell carcinoma developing from the lining epithelium of a dentigerous cyst have been documented.[12],[13]
The differential diagnosis includes a dental follicle, an eruption cyst (a soft-tissue cyst overlying the erupting tooth), a glandular odontogenic cyst, and a unicystic ameloblastoma, while an odontogenic keratocyst may also be considered.
His second wife, Lovell Woods Gamble, said he was diagnosed with a benign tumor, ameloblastoma, about nine years ago.
The Keratocystic Odontogenic Tumor (KOT) was the most frequently occurring type in this study, with 16 of the cases (in one case it was found concomitantly with a uni cystic ameloblastoma), followed by ameloblastoma (6) and odontoma (5).

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