title: Results of radiation therapy in carcinoma of the larynx.
abstract: Between 1973 and 1977, 254 patients with previously untreated squamous cell carcinoma of the larynx received 60Co external beam therapy; 161 patients (63.4%) survived without evidence of malignancy for five years after the radiation therapy alone, and 21 patients survived after salvage surgery. The overall crude survival rate was 182/254, i.e. 71.7 per cent at five years. Five-year survival rates without evidence of malignancy were 81.6 per cent in stage I, 73.4 per cent in stage II, and 40.8 per cent in stage III.
mesh_terms: D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000401:mortality / Q000473:pathology / Q000532:radiotherapy* / Q000556:secondary; D003037:Cobalt Radioisotopes / Q000627:therapeutic use; D005260:Female; D005931:Glottis / Q000473:pathology; D006801:Humans; D007822:Laryngeal Neoplasms / Q000401:mortality / Q000473:pathology / Q000532:radiotherapy*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D011867:Radioisotope Teletherapy; D012189:Retrospective Studies
chemical_list: D003037:Cobalt Radioisotopes