Abstract
Head and Neck cancer is the sixth most prevalent cancer worldwide. It involves a heterogeneous group of tumors that originates from the lip, oral cavity, oropharyngeal, hypopharyngeal, laryngeal, sinonasal tract and nasopharyngeal. These tumors are commonly classified as squamous cell carcinomas. They constitute 90% of the Head and Neck cancers and they present high rates of recurrence, m…