下顎に発生したEwing肉腫の1例

• Published in: 日本口腔外科学会雑誌 Vol. 55; no. 4; pp. 194 - 197
• Main Authors: 東郷, 由弥子, 西田, 光男, 安田, 真也, 杉並, 亜希子, 大久保, 康則, 別所, 和久
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.04.2009
• Subjects: Ewing 肉腫; 下顎; 遠隔転移
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.55.194

A case of Ewing’s sarcoma arising in the mandible is reported. A 20-year-old man was referred to our clinic because of right cheek swelling and trismus. Magnetic resonance imaging and computed tomography(CT)showed a mass around the right mandiblar ramus. Chest CT and 67Ga-scintigraphy revealed no evidence of distant metastasis. Histopathologically, the mass was diagnosed to be Ewing’s sarcoma/primitive neuroectodermal tumor(PNET). Chemotherapy, radiation therapy, and surgery were performed. Although the primary lesion was controlled, the patient died of lung and brain metastases 3 years 3 months after presentation.