Clinical Study of Laryngeal Cancer.

One hundred and nine cases of laryngeal cancer were treated between 1987 and 1997 in the Department of Otorhinolalyngology at Obihiro Kousei Hospital. The average age of the patients was 65.4 years old, and the male to female ratio was 21:1. Based on histopathological diagnosis, 108 cases were reported as squamous cell carcinoma and one case was reported as spindle cell carcinoma. There were 15 cases of supraglottic carcinoma, 91 cases of glottic carcinoma and 3 cases of subglottic carcinoma. There were 33 cases in stage I, 35 cases in stage II, 22 cases in stage III and 19 cases in stage IV. The five-year survival rates of the patients for stages I to IV were 100%, 90%, 66% and 65% respectively.