Studies on the effectiveness of teleradiotherapy in laryngeal cancer

486 previously untreated patients with cancer of the larynx were radically irradiated at the Institute of Oncology in Krakow in the years 1951-1966. Five-year cure rate without cancer symptoms after irradiation as the only treatment was 43% or 209 of 486 cases, and after surgery for recurrent cancer there were in addition, 55 survivors (11%). Dosage schemes of 60Co therapy for laryngeal tumor have been devised giving a dose of 6,000 rads per 24 fractions in 5 weeks. When irradiating the larynx together with cervical lymph nodes the dose of 6,000 rads was given during 6 to 7 weeks plus further irradiation at a lower dose if necessary. Two techniques of 60Co irradiation of typical cases of laryngeal cancer are described