194 laryngeal tumors were treated with cobalt teletherapy. They were classified according to the T.N.M. system and 168 have been evaluated statistically (T1 – T2 = 42; T3 – T4 = 124). The results are shown in a series of survival curves; the five-year survival rate is 21.6 %. This experience confirms the value of radiotherapy as a useful conservative treatment, although in many extensive cases (T3 – T4) radiotherapy ensures longer survival if combined with surgery.
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