Abstract
One hundred fifty-nine cases of laryngeal cancer that were diagnosed and treated between 1983and 1992 at the Department of Otolaryngology, Sapporo Medical University Hospital were evaluated. There were 101 glottic (66.0%),53 supraglottic (33.3%) and 5 subglottic (3.1%) tumors.The overall five-year survival rate was 74.2%, while the ten-year survival rate was 62.7%. Regarding the primary site of the tumor, the glottic type was more curable than the supraglottic type and its five-year survival rate was 82.8%, while that of the supraglottic type was only 63.8%. There was no significant difference in the five-year survival rate of laryngeal cancer patients with and without lymph node metastasis.
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