ameloblastic fibro-odontoma

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ameloblastic fibro-odontoma

A benign, occasionally aggressive tumour of young adults affecting the posterior jaw, which is characterised by a prominent ameloblastoma-like epithelial component.

Imaging
Unilocular or multilocular; well-circumscribed, corticated border; mixed radiolucency/radio-opacity.
 
Management
Simple curettage; recurrences are rare.

DiffDx
Ameloblastic fibro-odontoma has features of ameloblastic fibroma, but in addition they have enamel and dentin deposition.
References in periodicals archive ?
A differential diagnosis is also possible where DCs can be distinguished from odontogenic keratocyst, ameloblastic fibroodontoma, ameloblastic fibroma, calcifying epithelial odontogenic tumor, adenomatoid odontogenic tumor, and unicystic ameloblastoma (7).
Ameloblastic fibroodontoma (AFO) is a rare tumour characterized by proliferating odontogenic epithelium within primitive cellular ectomesenchymal tissue with/without hard tissue formation [2].
We present a case of ameloblastic fibroodontoma (AFO) in a 6-year-old male patient with distinctive orofacial manifestations, radiographic findings, histopathological report, and differential diagnosis with treatment to add to the existing knowledge.
Correlating the clinicoradiological and histopathological findings the lesion was diagnosed as ameloblastic fibroodontoma. Follow-up with this patient 2 years postoperatively exhibited good prognosis and no evidence of recurrences.
Mostly, nonneoplastic causes of jaw swelling in a young patient are an apical cyst, dentigerous cyst, calcifying odontogenic cyst, odontogenic keratocyst, and central giant cell granuloma [3, 10-12], whereas common neoplastic causes are an adenomatoid odontogenic tumor, unicystic ameloblastoma, calcifying epithelial odontogenic tumor (CEOT), ameloblastic fibroma, and ameloblastic fibroodontoma [3, 12, 13].
The neoplastic lesions often reported within the bovine tongue are squamous cell carcinoma, ameloblastic fibroodontoma (Mahjour and Pear Craft, 2007), malignant melanoma (Brito et al., 2009) and mast cell tumor (Hill et al., 1991).
Rostral mandibulectomy for treatment of an ameloblastic fibroodontoma in a cow.
The radiographic differential diagnosis included odontoma, ameloblastic fibroodontoma, and ameloblastic fibro-dentinoma.
On histopathologic examination, the neoplasm showed presence of dental papilla characterized by homogenous non cellular material (dentin and enamel) lined by columnar epithelium cells (ameloblasts) embedded in myxomatous fibrous stroma thus confirming ameloblastic fibroodontoma. The buffalo made an uneventful recovery with healing through second intention.
On basis of histopathological examination, neoplasm was diagnosed as ameloblastic fibroodontoma.
Ameloblastic fibroodontoma in mandibular incisor of a cow.
Examples of hamartoma includes odontoma, ameloblastic fibroodontomas , and squamous odontogenic tumors.