A case of myoepithelioma of the sublingual gland

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  • NIMURA Fumikazu
    Department of Clinical Neuroscience Oral and　Maxillofacial Functional Rehabilitation, Faculty of　Medicine, University of　the Ryukyus
  • ARAKAKI Keiichi
    Department of Clinical Neuroscience Oral and　Maxillofacial Functional Rehabilitation, Faculty of　Medicine, University of　the Ryukyus
  • ARASAKI Akira
    Department of Clinical Neuroscience Oral and　Maxillofacial Functional Rehabilitation, Faculty of　Medicine, University of　the Ryukyus
  • KINA Shinichiro
    Department of Clinical Neuroscience Oral and　Maxillofacial Functional Rehabilitation, Faculty of　Medicine, University of　the Ryukyus
  • SUNAGAWA Naho
    Department of Clinical Neuroscience Oral and　Maxillofacial Functional Rehabilitation, Faculty of　Medicine, University of　the Ryukyus
  • SUNAKAWA Hajime
    Department of Clinical Neuroscience Oral and　Maxillofacial Functional Rehabilitation, Faculty of　Medicine, University of　the Ryukyus

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Other Title
  • 舌下腺に発生した筋上皮腫の1例
  • ゼッカセン ニ ハッセイ シタ キン ジョウヒ シュ ノ 1レイ

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Myoepithelioma is a rare benign tumor that represents less than 1 % of all salivary gland tumors. We report a case of myoepithelioma developing in the mouth floor of a 72-year-old man. The lesion was clinically suspected to be a sublingual gland tumor, and resection was performed under general anesthesia. Pathologically, the tumor was composed of plasmacytoid cells that showed positive reactions for S-100 protein, keratin, and vimentin. The tumor was diagnosed pathologically as myoepithelioma. 18 months later after the operation, the postoperative course is good, with no recurrence of the tumor.

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