[Rendu-Osler disease treated by endonasal radiotherapy (evaluation of 62 cases)].

Two groups of patients were treated by plesiocurietherapy. The first group of 17 patients received only one exposure to radium (between 1949 and 1960). The second group received one or more doses of irridium 192 (between 1960 and 1973). The average period for stabilization of the disease was 13,2 months with radium and 20,4 months with irridium. Unfortunately, this does not give a permanent cure and, for irridium 192, the percentage of successes is only 30 p. 100 after 5 years. Logically, radiotherapy with irridium 192 should only be used when other methods have failed. The progressive accumulation of radio-lesions may, in fact, make the use of other techniques impossible.