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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.

1993年4月1日より, 1995年7月31日までの間に帯広厚生病院耳鼻咽侯科を受診し, 鼻アレルギーと診断された患者でRISTおよびPASTを施行しえた患者336例を対象として, 十勝地方の鼻アレルギー患者, 特に花粉症においての臨床的検討を加えた。北海道地方ではイネ科花粉症が重要であるといわれているが, 十勝地方ではシラカンバの樹木花粉症が最も重要であり, カモガヤ, チモシーのイネ科花粉症同様ヨモギ花粉症も重要であることがわかった。これは十勝地方の気候, 植性によるものであり, 日常診療において役立てるべきであると思われた。