Metastasis of lower gingival squamous cell carcinoma to buccinator lymph node: case report and review of the literature.

This is the first report of lower gingival squamous cell carcinoma with metastasis to BN. Metastasis to BN from lower gingival cancer is very rare but should be considered in patients with locally advanced tumors or tumors that metastasize to the submandibular node.