head and neck carcinoma lip and oral cavity carcinoma https://rarediseases.info.nih.gov/diseases/9342/lip-and-oral-cavity-cancer MONDO:0023644 UMLS:C0220641 lip and oral cavity cancer oral cancer 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. MEDGEN:67387 NCIT:C9315 lip and oral cavity carcinoma GARD:0009342 oral carcinoma