Abstract
Twenty-three patients with cervical lymph node metastasis from an unknown primary carcinoma treated at the Gunma Cancer Center were analyzed. The origin of the metastatic lymph nodes was determined in 10 cases during the treatment, while the origins of 5 casas were determined at autopsy. At the time of diagnosis for cervical lymph node metastasis from and unknown primary carcinoma, it is necesary to sufficiently inspect the mucous membrane of the head and neck, and also keep in mind the possibility of metastasis from other organs. Even if the cancer origin is unknown, a neck dissection should be performed whenever possible.
