| umls-concept:C0220641 | skos:definition | NCI: Cancer that forms in tissues of the oral cavity (the mouth) or the oropharynx (the part of the throat at the back of the mouth).,NCI: A carcinoma arising in the lip or oral cavity. Most oral cavity carcinomas are squamous cell carcinomas of the tongue, buccal mucosa, or gums. Less frequent morphologic variants include mucoepidermoid carcinoma and adenocarcinoma. Lip carcinomas are usually basal cell or squamous cell carcinomas. -- 2004 | lld:umls |
