out of 314 malignant epithelial tumours 86.0 per cent were squamous carcinomas ( subtypes : 6 % microcarcinomas , 30 % keratinizing , 45 % non keratinizing and 5 % small cell carcinomas ) , 9.0 per cent adenosquamous carcinoma , 3.5 % adenocarcinoma and 1.5 per cent undifferentiated carcinoma .
C0007097
malignant
C0262584
small cell