Head and Neck Cancer Head and neck cancer is the term given to cancers that start in the head and neck region. These are cancers that begin in any of these places: Mouth, also called the oral cavity Nasal cavity, the passage behind the nose Paranasal sinuses, which are the spaces around the nose, lined with cells that make mucus. They also provide a space that allows the voice to echo when you are talking or singing. Salivary glands, glands that make saliva Throat, known as the pharynx Voice box, called the larynx Learn more about Inspira's approach to head and neck cancer treatment from Gus J. Slotman, M.D. Read information about Head & Neck Cancer in our Health Library.