77 cases of laryngeal cancer receiving radiation therapy from 1970 to 1975 at Yonsei Cancer Center were followed up and reviewed in respect of clinicopathologic statuc, method of radaitian therapy, 5 year survival rate after radiation therapy, causes of treatment failure and complication after radiation theraphy. The results are as follows; The peak age incidence was 6th decade (44.1%), and the male vs. female ratio was 7 5:1. The glottic lesion was most comman (37.7%), and the transglottic type was the next (33.8%) The neck node involvement was most common in the transglottic type (80.8%). 3. The overall 5-year survival rate radiotherapy was 65.5%, and according to the location, 80.2% in the glottic type, 49.9% in the transglottic type, and 48.9% in the transglottle type, and 48.9% in the supraglottic type. Compared to the 66.8% of 5-year survival rate after combined radiotherapy and surgery, 58.8% resulted after irradiation alone. 4. The most comon cause of treatment failure was massive disease (36%). 5. The common complication of radiotherapy was xerostomia and loss of taste.
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