[The brachytherapy of carcinoma of the external auditory canal]

Brachytherapy is advantageous in the initial carcinomas of external auditory canal. The radiation charge of the surrounding tissues is much lower in spite of millivoltage irradiation because of its higher dosage gradient. It is stated according to the recent experiences and results on seven treated patients, that with LDR treatment of 5 x 10 Gy on consecutive days and with HDR treatment of 6 x 6 Gy on weekly interruptions (in both cases the dose means a depth of 5 mm). It is impossible to give the analysis because of the small number of cases. On base of our own patients it could be proved that lasting recovery of bone involving tumours is due to radical surgery and postoperative millivoltage irradiation.