“ Head and neck cancers collectively are cancers that originate in the squamous cells lining the mucosal surfaces of the head and neck for example, inside the mouth, throat, and voice box. Head and neck cancers are known as squamous cell carcinomas of the head and neck. Head and neck cancers can also occur in the salivary glands, sinuses, or muscles or nerves of the head and neck. However, these are less common than squamous cell carcinomas. “