Abstract
Buccinator node, a facial lymph nodes lying on the Buccinator muscle, is rarely accompanied by carcinoma of the oral and maxillofacial regions. Only 10 metastatic diseases of the node diagnosed by imaging were described in the literature. In this report, two cases of metastases from oral and maxillary cancers was presented. Ore case was an 84-year-old female with squamous cell carcinoma (T2N1M0) . A polypoid tumorous lesion accompanied with submucosal induration was detected in the buccal region, and CT revealed another mass lesion with typical findings of metastatic lymph node situated deeply to the lesion. Another case was a 51-year-old male with squamous cell carcinoma of the maxillary sinus (T4N1M0) . CT and MR showed that the tumor had invaded severely into the subcutaneous layer and an another separate mass with typical findings of a metastatic lymph node situated in the buccal fat pad. In the literature, buccinator node metastases most frequently occurred in the facial node (50%) and were seldom accompanied by cervical node involvement (12%) . From the literatures reviewed including our cases, the most common primary sites to metastasize to the buccinator node may be buccal mucosa and maxillary sinus.
The results indicated that careful examinations, including cross-sectional imagings, would be required to assess the buccinator node in the cases of cancer in the buccal mucosa and maxillary sinus.
