Mandible / maxilla – Malignant tumors: ameloblastic fibrosarcoma. 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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In summary, AFS is a rare malignant odontogenic tumor characterized by a benign odontogenic epithelium and a malignant mesenchymal component that can arise from a previous AF or de novo.

Also, the extraction site of the second and third molar was filled with an irregular exophytic ulcerated mass which bled easily on palpation [ Figure 1 ]. Ameloblastic fibrosarcoma of the mandible: Anaplastic ameloblastic fibrosarcoma arising from recurrent ameloblastic fibroma: Swelling, lower left mandible. Journal of Oral Pathology and Medicine. To the best of our knowledge, less than documented cases have been reported in the English language literature [ 6 swrcoma. Malignant odontogenic tumors are classified as odontogenic carcinomas and odontogenic sarcomas [ 1 ].

It mainly presents as a painful maxillary or mandibular swelling.

Journal List Case Rep Pathol v. Histopathological examination revealed a biphasic tumor composed of inconspicuous islands of benign odontogenic epithelium and an abundant malignant mesenchymal component with marked cellularity, nuclear pleomorphism, hyperchromatism, and moderate mitotic figures with clear margins; one year after the surgical procedure, the patient is clinically and radiologically disease-free.


The treatment of choice for AFS is radical surgical excision without primary neck dissection. Clinically, patients present with pain and swelling [ 3 ] and the mandible is the most commonly affected site [ 1 ].

Pathology Outlines – Malignant tumors: ameloblastic fibrosarcoma

CD34 expressing ameloblastic fibrosarcoma arising in the maxilla: In general, the treatment of choice is surgical excision with clear margins and long-term follow-up. In view of these histopathological and immunohistochemistry findings, an AFS was diagnosed. Clinical findings vary among reported cases but usually include pain and swelling.

The majority of reported cases have been found in the posterior region of mandible and rarely maxillary involvement is indicated.

Recently, some authors have suggested a panel of biomarkers associated with cell proliferation Ki67, PCNA, and c-KIT and apoptosis Bcl2 to overcome difficulties in the diagnosis of low-grade tumors and evaluate the growth potential in the mesenchymal component without considering clinical and radiographic findings.

A biopsy of the mass was performed. Maryam Khalili 1 and Pouyan Darcoma Shakib 2.

Ameloblastic Fibrosarcoma of the Mandible: A Case Report and Brief Review of the Literature

Sarcoam posterior mandible is the most commonly affected site [ 8 ]. Experimental and Therapeutic Medicine. Therefore, a more serious process was suspected and the patient was referred to an OMFS for further examination. This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.

Open in a separate window. Ameloblastic fibrosarcoma of the mandible: Radiologically, AFS presents as a radiolucent mass with ill-defined borders. Radical surgical excision and long-term follow-up are the suggested treatment. Home About Us Advertise Amazon. A copy of the written consent is available upon request for review. All surgical margins were free of tumor infiltration.


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Diagnosis dependent on clinical, radiologic and pathologic correlation. New author database being installed, click here for details.

Author information Article notes Copyright and License information Disclaimer. Received Jan 11; Accepted Mar 2. As expected, the pain persisted and healing of the extraction site was not normal. Grossly the tumor may be cystic or solid with a fleshy whitish to yellow appearance [ 7 ]. Abstract Ameloblastic fibrosarcoma is an uncommon odontogenic tumor composed of a benign epithelial component and a malignant ectomesenchymal component most frequently seen in the third and fourth decades of life.

Ameloblastic fibrosarcoma of the upper jaw: Report of a rare case with long-term follow-up

According to these 62 published cases, the tumor is more common in males than females The origin of our patients AFS and her age are two important features to consider since they seem to further support the observation made by Noordhoek et al.

Odontogenic Tumors and Allied Lesions. J Oral Pathol Med.