外側舌リンパ節に多発転移を認めた下顎歯肉癌の1例

• Published in: 日本口腔外科学会雑誌 Vol. 60; no. 5; pp. 257 - 261
• Main Authors: 佐久間, 英規, 梅村, 昌宏, 岩井, 晋太郎, 齋田, 昂佑, 長縄, 吉幸, 大音, 博之
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.05.2014
• Subjects: 下顎歯肉癌; 介在リンパ節; 舌リンパ節; 転移
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.60.257

A case of squamous cell carcinoma of the lower gingiva with multiple metastases to the lateral lingual lymph nodes is reported. A 57-year-old man was given a diagnosis of moderately differentiated cT2N2bM0 squamous cell carcinoma of the left lower gingiva. Radical neck dissection, marginal mandibulectomy, and reconstruction with a metal plate were performed. Preoperative computed tomography and magnetic resonance imaging revealed two masses 5 to 8 mm in diameter outside of the left genioglossus muscle. The masses were enucleated and suspected of be lymphoepithelial cysts on intraoperative frozen section examination. However, the final pathological diagnosis was lymph-node metastasis. Resection of the oral floor and external radiation and chemotherapy were performed as additional treatment. No evidence of disease was noted during more than 6 years of follow-up.