高齢者の頬部に発生した多形型横紋筋肉腫の1例

  • 大山 定男
    東京都立駒込病院口腔外科
  • 吉田 俊一
    東京都立駒込病院口腔外科 独立行政法人国立病院機構霞ヶ浦医療センター歯科口腔外科
  • 莇生田 整治
    東京都立駒込病院口腔外科 慶應義塾大学医学部歯科・口腔外科学教室
  • 内田 育宏
    東京都立駒込病院口腔外科
  • 高野 正行
    東京歯科大学口腔健康臨床科学講座口腔外科分野
  • 元井 亨
    東京都立駒込病院病理科

書誌事項

タイトル別名
  • A case of pleomorphic rhabdomyosarcoma in the buccal region of an elderly patient
  • 高齢者の頰部に発生した多形型横紋筋肉腫の1例
  • コウレイシャ ノ ホオブ ニ ハッセイ シタ タケイガタ オウモンキン ニクシュ ノ 1レイ

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抄録

Rhabdomyosarcoma is histopathologically classified into fetal, alveolus nest, and pleomorphic types. Reportedly, the incidence is high in children, but rhabdomyosarcoma is relatively rare in the elderly. Treatment methods for this soft tissue tumor were investigated by the International Rhabdomyosarcoma Study, and therapeutic results have been improved, but outcomes remain poor. We encountered and treated an elderly patient with pleomorphic type rhabdomyosarcoma. We report the case, with a literature review. The patient was a 77-year-old man who presented with swelling of the left cheek. Diffuse swelling of the left cheek and an ulcer of the buccal mucosa were observed, and the patient was given a histopathological diagnosis of polymorphismtype rhabdomyosarcoma. Surgical treatment was performed without chemotherapy or radiotherapy in consideration of his past medical history. The clinical course has been favorable, with no recurrence or metastasis for 6 years 10 months since surgery. However, continued strict follow-up is considered necessary because there is no standard treatment for pleomorphic type rhabdomyosarcoma, and outcomes are generally poor.

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