| umls-concept:C1168401 | skos:definition | NCI: Cancer of the head and neck that begins in squamous cells (thin, flat cells that form the surface of the skin, eyes, various internal organs, and the lining of hollow organs and ducts of some glands). Squamous cell carcinoma of the head and neck includes cancers of the nasal cavity, sinuses, lips, mouth, salivary glands, throat, and larynx (voice box). Most head and neck cancers are squamous cell carcinomas.,NCI: A carcinoma of any tissue within the head and neck region.,NCI: A squamous cell carcinoma that arises from any of the following anatomic sites: lip and oral cavity, nasal cavity, paranasal sinuses, pharynx, larynx, and salivary glands. | lld:umls |
