Carcinomi dei seni paranasali. Risultati del trattamento con radioterapia sola o con associazione radio-chirurgica.

The authors evaluate 117 patients affected by paranasal sinuses carcinoma treated by radiation therapy alone or by post-operative irradiation, from 1976 to 1984. Among these: 4 T1, 21 T2, 48 T3 and 44 T4; 66 cases were squamous cell carcinomas, 23 adenocarcinomas, 16 undifferentiated carcinomas and 12 adenoid cystic carcinomas. The overall 3 and 5 years actuarial survival rates were, respectively, 46% and 27%. The survival rates for stages T1 and T2 were 82 and 48% at 3 and 5 years; for stages T3 and T4 were 36% and 21%. According to the hystological type the survival rate varied from 50% for adenoid cystic carcinomas to 0% for undifferentiated carcinomas at 5 years. The survival rate for the group of patients treated with post-operative irradiation was 37% at 5 years, versus 10% for the group treated by radiotherapy alone. Complications have been minimal. Causes of failure are discussed. In conclusion, the authors consider a multicentric study as necessary to determine the efficacy of various schedules of treatment.