Malignant tumours of the nasal septum.

(1) Primary malignant tumours of the nasal septum are rare. (2) Forty-three cases of primary malignant septal tumours are presented and analyzed. (3) This present series is compared with the 97 previously reported cases. (4) The commonest primary malignant tumour at this site is squamous cell carcinoma. (5) The aid of a computer has been utilized to assess survival trends. (6) The overall 5-year survival in this group is 58 per cent. (7) Prognosis is not significantly affected by different treatment protocols. (8) Prognosis is significantly worse in patients with late stage tumours and in patients who have radiological abnormalities in their paranasal sinus x-rays.