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  • Title: Epithelioid osteosarcoma presenting as a rapidly expanding maxillary mass.
    Author: Rinaggio J, Kewitt GF, McGuff HS.
    Journal: Head Neck; 2007 Jul; 29(7):705-9. PubMed ID: 17230564.
    Abstract:
    BACKGROUND: Osteosarcomas of the jaws account for less than 10% of reported neoplasms of this type. Patients with osteosarcoma in this region tend to be in the late-third to mid-fourth decades of life. The osteoblastic, chondroblastic, and fibroblastic variants constitute the majority of lesions. METHODS: A mass was observed in the maxilla of a 50-year-old male who presented for a complete odontectomy. Over the ensuing weeks, the mass substantially increased in size, despite multimodality treatment efforts. RESULTS: Radiographic findings revealed a mixed density mass of the left maxilla. Histologic, immunohistochemical, and electron microscopy examination of the tumor showed a malignant mesenchymal neoplasm consisting of sheets of epithelioid and spindle cells exhibiting focal osteoid formation. CONCLUSIONS: We report a rare and aggressive case of epithelioid osteosarcoma arising in the maxillofacial complex.
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