[Radiotherapy in trimodal combination therapy of maxillary sinus squamous cell carcinoma].

From May 1979 to December 1982, 31 patients with reappraisable preoperative CT were treated with trimodal combination therapy for maxillary sinus squamous cell carcinoma. The three-year cumulative survival rate of all cases was 43% and the two-year cumulative local control rate was 44%. The 5-FU distribution in infusion chemotherapy was reappraised by the dye method and the radiation field was reappraised on the basis of preoperative CT. Only patients who received suitable infusion chemotherapy and radiotherapy showed a good local control rate. Suitably performed infusion chemotherapy and radiotherapy were essential in our trimodal combination therapy. Radiotherapy must be planned according to the individual patient on the basis of the preoperative CT and surgical findings.