What is an Acanthomatous ameloblastoma?

What is an Acanthomatous ameloblastoma?

Acanthomatous ameloblastoma is a common tumor arising from rests of odontogenic epithelium in the submucosa and periodontal ligament of the oral cavity. These tumors are locally invasive and destructive, resulting in lysis of alveolar bone and loss of teeth.

What is Acanthomatous?

Acanthomatous type is a benign tumor, but is locally aggressive and frequently invades the alveolar bone or recurs after marginal surgical excision.

What is Unicystic ameloblastoma?

Unicystic ameloblastoma (UA) refers to those cystic lesions that show clinical, radiographic, or gross features of a mandibular cyst, but on histologic examination show a typical ameloblastomatous epithelium lining part of the cyst cavity, with or without luminal and/or mural tumor growth.

Is ameloblastoma common or rare?

Ameloblastoma is a rare, noncancerous (benign) tumor that develops most often in the jaw near the molars. Ameloblastoma begins in the cells that form the protective enamel lining on your teeth. Ameloblastoma occurs in men more often than it occurs in women.

Is ameloblastoma fatal?

A review of the medical literature provides further evidence of the locally aggressive behavior and potentially lethal nature of this tumor. No effective treatment has evolved for extensive ameloblastomas of the maxilla that have invaded surrounding vital structures.

How quickly does an Epulis grow?

Most epulides are slow growing and may be present for several months before detection. There are three main types of epulis, based on their manner of growth and the tissues involved: • The most common types are the fibromatous and ossifying epu- lides.

Is Unicystic ameloblastoma malignant?

Ameloblastomas are benign tumors whose importance lies in its potential to grow into enormous size with resulting bone deformity. They are typically classified as unicystic, multicystic, peripheral and malignant subtypes.

Can ameloblastoma be cancerous?

Although it is uncommon, ameloblastomas have been known to become malignant and spread to other parts of the body, especially to the lungs. The initial surgical treatment must be carefully and scrupulously done to avoid recurrence. Ameloblastomas do not usually become malignant.

What kind of tumor is an acanthomatous ameloblastoma?

Acanthomatous ameloblastoma is considered as an aggressive tumor of the canine jaw, characterized by irregular verrucous masses adjacent to the tooth3. In 1993 Gardner and Baker described that acanthomatous epulides were a type of ameloblastoma that developed from the gingival epithelium (peripheral) or from alveolar bone (intraosseous)4.

Is there such a thing as a canine ameloblastoma?

As there is no comparable tumor both histologically and behaviorally, this epulide is currently referred to as Canine Acanthomatous Ameloblastoma (CAA). 1,3 HOW CAN CAA BE DIAGNOSED?

When do ameloblastomas of the oral cavity occur?

Schafer et al reported that ameloblastomas of oral cavity, except sinonasal type typically occur in younger age patients (15-25 years younger) without gender predilection6. About 80% of all cases occur in mandible, of which 70% cases are seen in the ramus1.