Epithelioid osteosarcoma presenting as a rapidly expanding maxillary mass

Autor: H. Stan McGuff, Greg F. Kewitt, Joseph Rinaggio
Rok vydání: 2007
Předmět:
Zdroj: Head & Neck. 29:705-709
ISSN: 1097-0347
1043-3074
DOI: 10.1002/hed.20575
Popis: 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 malig- nant mesenchymal neoplasm consisting of sheets of epithelioid and spindle cells exhibiting focal osteoid formation. Conclusions. We report a rare and aggressive case of epi- thelioid osteosarcoma arising in the maxillofacial complex. V C 2007 Wiley Periodicals, Inc. Head Neck 29: 705-709, 2007
Databáze: OpenAIRE