A case of buccal mucosal cancer with mandibular lymph-node metastasis

Masahiro UCHIBORI, Kazunari KARAKIDA, Kenichiro SHIGENO, Miho TAKAHASHI, Haruo SAKAMOTO
2019 Japanese Journal of Oral & Maxillofacial Surgery  
Metastasis of oral cancer to the mandibular lymph nodes is rare. We report a case of buccal mucosal cancer with mandibular lymph-node metastasis. An 84-year-old man was referred to our department for a left buccal mucosal mass. Intraoral examination showed a 23 × 20-mm protruding lesion in the left buccal mucosa. Incisional biopsy revealed squamous cell carcinoma. We diagnosed squamous cell carcinoma of the left buccal mucosa (cT2N0M0, Stage II) after further evaluation, the patient underwent
more » ... cision of the left buccal mucosa. We detected a metastatic lymph node that was not connected to the primary tumor; therefore, we diagnosed squamous cell carcinoma of the left buccal mucosa with mandibular lymph-node metastasis (pT2N1M0, Stage III) . Recurrence or metastasis has not occurred as of 1 year 11 months postoperatively. The prognosis of mandibular lymph-node metastasis of oral cancer is poor. However, the number of cases is small, and mandibular lymph-node metastasis is not widely known because of its low frequency. Therefore, it may be incorrectly diagnosed as local recurrence. We should consider the possibility of mandibular lymph-node metastasis when diagnosing and treating buccal mucosal cancer or mandibular gingival cancer. : mandibular lymph node (下顎リンパ節) , buccal mucosal cancer (頰粘膜癌) , lymph-node metastasis (リンパ節転移) 東海大学医学部付属八王子病院口腔外科 (主任:坂本春生教授)
doi:10.5794/jjoms.65.747 fatcat:poz2djrdojfpzmxiikkw2bbnxu