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1. Eur Ann Otorhinolaryngol Head Neck Dis. Feb;(1) doi: / Epub Jul 9. A case of an ameloblastic fibrosarcoma in the mandible is described. The primary tumor was seen in a 5-year-old child. In spite of repeated surgical. Introduction. Ameloblastic fibrosarcoma (AFS) is a rare malignant odontogenic tumor. It can arise de novo, however one-third of cases may arise from a recurrent.

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There is also a lack of data on the effects of the sarcomatous component of the lesion on proliferative activity and differentiation aspects of the ameloblastic epithelium present in AFS. Swelling, lower left mandible.

The prognosis associated with AFS is good when fibrosacroma with surgical resection [ 4 ]. Rev Bras Otorrinol ; There were foci of necrosis near the epithelial islands. Please review our privacy policy.

Variations in tumor parenchyma differentiation seem to have no influence on ameloblastjc behavior, as the lesions show very similar clinic-demographic aspects and are associated with similar overall median survival rates, as described in this review. There was no reactivity for CK7, CK18, calretinin, fibronectin or desmin. Fibrosxrcoma J Pediatr Otorhinolaryngol ; Report of a case of ameloblastic sarcoma. Open in a separate window. In described case, the patient was treated by mandibulectomy, with no adjuvant therapy.


Although the immunohistochemical profile of this neoplasm was identical to the one described in the literature and helped to establish the diagnosis, we agree with Kobayashi and most authors, and believe the diagnosis is essentially made by histology.

Page views in Ameloblastic fibrosarcoma AFS is a rare malignant mixed odontogenic tumor which is usually considered as the malignant counterpart of fubrosarcoma fibroma. CD34 expressing ameloblastic fibrosarcoma arising in the maxilla: Based on the findings, segregation among ameloblastic fibrosarcoma, ameloblastic fibrodentinosarcoma and ameloblastic fibro-odontosarcoma seems illogical, considering all these lesions have similar predilections and outcomes.

Postoperative chemotherapy and radiotherapy has been used successfully in a few reported cases.

Ameloblastic fibrosarcoma: a rare malignant odontogenic tumor.

This knowledge along with fibfosarcoma high index of suspicion results in correct differential diagnosis and early detection of serious cases and could have a tremendous impact on the prognosis and total outcome of the disease.

Most of the lesions presented large mean, 5. Ameloblastic fibrosarcoma [title] mandible. Ameloblastic fibrosarcoma of the jaws.


Epithelial cells displayed strong positivity for p53, p63 and cytokeratin Pathology and Genetics of Head and Neck Tumours.

Acta Chir Scand ; Although cell proliferation is up-regulated in the sarcomatous component, it does not appear to affect the differentiation status of the ameloblastic epithelium in AFS. J Oral Pathol Fibrosarccoma ; Immunoexpression of Ki67, proliferative cell nuclear antigen, and Bcl-2 proteins in a case of ameloblastic fibrosarcoma.

Pathology Outlines – Malignant tumors: ameloblastic fibrosarcoma

Oral and Maxillofacial Pathology: Beitr Pathol Nat ; A highly malignant ameloblastic fibrosarcoma. Disruption in the mechanisms of control cell growth is a hallmark of cancer, which occur mainly due to derangement of the cell cycle checkpoints. Computed tomography scan shows extensive destruction of the left maxillary sinus.

J Craniofac Surg ; Int J Oral Surg ;7: Clinically, most AFS are similar to AF, but characteristics of aggressive behavior are always identified, as seen in the present case.