Abstract
The head and neck cancer includes the neoplasias that appear in the oral cavity, pharynx and larynx and the majority is of the epidermoid histological type. World-wide, this is the sixth type of more common cancer, and understands about 6% between all the types of cancer. More than 500,000 new cases and about 300.000 deaths for head and neck cancer are esteem per year. The treatment for h…