舌下腺に発生した粘表皮癌例

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  • A Case of Mucoepidermoid Carcinoma of the Sublingual Gland
  • 臨床 舌下腺に発生した粘表皮癌例
  • リンショウ ゼッカセン ニ ハッセイ シタ ネンヒョウヒガンレイ

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<p>Sublingual gland carcinomas are very rare, comprising only 0.5% to 2% of all carcinomas of the major salivary glands. Because of the low frequency of occurrence, case reports of this condition are of interest. Herein, we report a patient with mucoepidermoid carcinoma of the sublingual gland who was followed up for four and a half years after the first treatment.</p><p>A 68-year-old female patient initially received radiotherapy for epipharyngeal cancer. She developed neither local nor metastatic recurrence after the treatment. However, 2 years later, she was detected to have a tumor in the floor of the mouth on the right side. Clinical examinations revealed that the tumor was a malignant tumor involving the sublingual gland. We resected the tumor via the oral approach and postoperative histopathology confirmed the diagnosis of low-grade mucoepidermoid carcinoma of the sublingual gland. Until the end of her four and a half years’ follow-up after the first treatment, the patient showed no evidence of recurrence.</p><p>In regard to the malignancy grade, most patients with this carcinoma have lowgrade malignant tumors. However, patients should be carefully followed up for possible local recurrence.</p>

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