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Odontogenic tumors are heterogeneous group of lesions with diverse histopathological and clinical features. Ameloblastic fibro-dentinoma. The ameloblastic fibro-odontoma (AFO) is a rare mixed odontogenic tumor. .. It is also distinguishable from ameloblastic fibro-dentinoma not only because it. Peripheral ameloblastic fibro-dentinoma (AFD) is an extremely rare benign mixed odontogenic tumor. From a review of the English-language literature, to the.

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None, Conflict of Interest: The malignant counterpart of these lesions namely aameloblastic fibrosarcoma, ameloblastic dentinosarcoma and ameloblastic odontosarcoma respectively are said to arise secondarily in their benign counterpart or de novo.

Presence of tooth germ elements, e. Fibri Ameloblastic fibro-odontoma AFO predominantly occurs in the jaw bones of children and young adults.

Giraddi GB, Garg V. Because this lesion clinically resembles other nonneoplastic lesions and is very rare in gingiva, establishing a correct diagnosis is achieved only based on specific histological characteristics.

Odontogenic tumors are a heterogeneous group of diseases ranging from hamartomas to benign and malignant neoplasms with metastatic potential. The probing depths of the tooth were within normal range. Pre-operative intraoral view shows buccal and lingual expansion in the posterior mandible.

More female cases are reported than male ones. Mixed odontogenic tumours and odontomas. Some other reports demonstrated that a conservative enucleation is enough.

It is usually slow developing and is usually seen in young persons with a mean age between 8 and 12 years [ 13 ]. CD31 staining confirmed that there were abundant small blood vessels in the tumor stroma, especially in the area adjacent to the enamel epithelium Figure 4. This article has been cited by other articles in PMC. Report of a case.

The periapical radiograph revealed no periapical lesion, root resorption, or radiopaque abnormality Figure 1 c. The borders were not sclerotic.


Ameloblastic fibro-odontoma AFO predominantly occurs in the jaw bones of children and young adults. A study of 1, cases from Northern California and comparison to studies from other parts of the world. Ameloblastic fibro-deninoma of mandible: Indian J Dent Res ; In support of this latter proposition, Slootweg[ 8 ] analyzed 33 mixed odontogenic tumors and found that the mean age of the patients with ameloblastic fibroodontoma was lower than that of the patients with AF.

Clinical and radiographic appearances. Despite numerous efforts, however, there is still considerable confusion concerning the nature and interrelationship of these mixed odontogenic tumors and the related lesions. Table of Contents Alerts. Recurrence of an ameloblastic fibro-odontoma in a 9-year-old boy.

Aggressive atypical ameloblastic fibrodentinoma: Report of a case

On the other hand, the compound odontoma is considered as a separate entity resulting from a locally hyperactivity of the dental lamina.

Both epithelial and fibrous elements may therefore represent those of odontogenic fibroma with or without dentin formation.

Swelling involving the buccal vestibule extending from the region of the right maxillary central incisor to the fi rst premolar Click here to view. Tooth bud attached to the follicle around the lesion was removed. The dentist decided to refer the child to our hospital.

Conclusion Clinicians when dentinmoa with radiopaque mass in posterior maxilla of children should keep the possibility of ameloblatic mixed odontogenic tumour in mind. The age range is 12—83 years, with a peak in the third decade. Clinical appearance 1 year after excisional biopsy for the gingival lesion. Support Center Support Center. Depending on the histological diagnosis and aggressiveness of the lesion, a radical resection was planned in order to prevent further chances of recurrence and malignant transformation that are usually seen with recurrence of the lesion following inadequate removal.


Ameloblastic fibroodontomas are regarded as possible precursor lesions. Two additional pathologies, peripheral ameloblastoma and calcifying epithelial odontogenic tumor, should also be distinguished [ 4 ]. There was grade II mobility with respect to 44 and 45, while the 46, 47 and 48 were absent. Diffuse extraoral swelling on the right side of the face Click here to view.

Examination of the oral cavity revealed a bony hard swelling extending from the right first premolar to the angle area.

The histopathologic examination of the soft tissue revealed numerous cords and follicles of odontogenic epithelium exhibiting peripheral ameloblast-like cells within primitive ectomesenchymal tissue Fig. Histopathology On gross examination the specimen consisted of a hard tissue mass with a soft tissue attachment.

In some of the cases previously diagnosed as AFD, dentine matrix or dentinoid tissue is an area of hyalinization around the epithelial component, and some workers have suggested that hyalinized material may not represent dentine formation. OPG showed unerupted tooth bud of upper right second molar and was being prevented from eruption by the odontome. The case presented here also showed an aggressive growth pattern and the histological study revealed few areas showing increased cellularity and cellular pleomorphism, raising a doubt toward the malignant transformation of the lesion.

Case Reports in Dentistry

Further, of similar interest is the relationship, if any, between the above three lesions and the fully calcified or mineralized odontogenic lesions, the odontomas. Enamel formation could not be identified even on multiple sections.

The age of our patients provides further evidence that contradicts this conclusion as our patient is an extremely young child.

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