A head and neck cancer that has_material_basis_in epithelial cells and is located in the upper aerodigestive tract, including the lip, oral cavity (mouth), nasal cavity, paranasal sinuses, pharynx, and larynx. [ http://purl.obolibrary.org/obo/ECO_0007638 url:http://www.cancer.gov/cancertopics/factsheet/Sites-Types/head-and-neck url:http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&version=14.09e&code=C35850&ns=NCI_Thesaurus&key=153772862&b=1&n=null http://purl.obolibrary.org/obo/ECO_0007636 http://purl.obolibrary.org/obo/ECO_0007637 url:http://en.wikipedia.org/wiki/Head_and_neck_cancer ]