The major risk factors are cigarette smoking and alcohol consumption, while betel nut is an additional factor in Taiwan. Different gene mutation sites in head and neck cancer between western countries and Taiwan have been reported. The presentation of<unk>  originated from exposure to different carcinogens may not be the same.
Verrucous carcinoma
Anaplastic carcinoma
Basal-like carcinoma
Mucinous carcinoma
Adenosarcoma
Lymphoepithelioma-like carcinoma
Mammoplasia
Epithelial-myoepithelial carcinoma