Some 908 cases of malignant tumors of the nose and paranasal sinuses treated from 1957 through 1974 were statistically analysed. The most common tumor site was the maxillary sinus (91.4%) and the most common histological figure was carcinoma (92.4 %).The crude and relative survival rates for each treatment mode were calculated in January 1975. The number of cases and the 5 year relative survival rates of the main groups were as follows:
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