Abstract
We examined the utility of neck dissection on a N3 metastasis in 30 HNSCC patients who were treated from 1999 to 2010. The details of the examination were the site of primary tumor, the T stage, the method of treatment, the survival rate and prognosis. The site of primary tumor included 14 cases of hypopharynx, 5 of oropharynx, 5 of tongue, 3 of supraglottic, and 3 of oral floor. In 30 cases, 21 were treated by operation and post-operative radiotherapy and 9 were treated by chemoradiotherapy.
The overall five-year disease-specific survival rate was 43%, representing 56% for operative cases and 22% for chemoradiotherapy cases. Twelve cases were still alive but 14 cases had died of the primary disease, and 4 cases had died of another disease. We consider that neck dissection against N3 metastasis cases in HNSCC is an effective treatment.
