High dose rate Microselectron mould radiotherapy of a widespread superficial oral cancer

Treatment of a case of widespread superficial oral squamous cell carcinoma with external beam irradiation, followed by high dose rate Microselectron m ould radiotherapy, is reported. The tumor disappeared macroscopically after treatment, but there was infield recurrence in the buccogingival sulcus wh ere the radiation dose might have been inadequate. Apart from some radiatio n mucositis within the treated area, edema and a superficial ulcer were obs erved in the tongue. These were considered to be due to radiation overdose. Although there is room for improvement, this mode of treatment has somethi ng to offer patients with hard-to-cure cancer.