Abstract
From January 2000 to December 2005, 56 oral cancer patients were treated with preoperative radiotherapy at Hokkaido University Hospital. All loco-regional recurrences appeared in the radiation field. Good local control rate was seen in patients treated with concomitant intra-arterial or intra-venous chemotherapy, compared with radiotherapy alone.
Local recurrence rate was worse in cases where the interval from the end of irradiation to the date of operation was longer than 3 weeks.
