MedGen

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. [from NCI]

A rare head and neck tumor characterized by a firm infiltrative neoplasm with squamous differentiation, arising from the mucosal epithelium, and most commonly located in the tongue, floor of the mouth, or gingiva, but also the buccal mucosa or any other area of the oral cavity, depending on prevailing risk factors (such as smoking, alcohol consumption, and tobacco chewing). Patients present with a variably white, erythematous, mixed, nodular, or ulcerated lesion, which may cause discomfort, pain, or reduced mobility of the tongue. The tumor is aggressive with a propensity for local invasion and early lymph node metastasis. [from ORDO]

Malignant triton tumor (MTT) is a rare aggressive subtype of malignant peripheral nerve sheath tumor (MPNST; see this term) characterized histopathologically by focal rhabdomyoblastic differentiation. [from ORDO]

The presence of squamous cell carcinoma of the skin. [from HPO]

A neoplasm that is composed of squamous epithelial cells. Squamous cell carcinoma is a representative example. [from NCI]

A tumor (abnormal growth of tissue) of the oral cavity. [from HPO]

A non-neoplastic or neoplastic disorder that affects the oral cavity or the lips. Representative examples include inflammatory disorders, precancerous conditions, and carcinomas. [from NCI]

Any deviation from the normal concentration of tyrosine in the blood circulation. [from HPO]

Abnormality of the oral cavity, i.e., the opening or hollow part of the mouth. [from HPO]