Basal cell carcinoma UMLS:C0007117 The presence of a basal cell carcinoma of the skin. Basal cell epithelioma UMLS:C1862314 SNOMEDCT_US:275265005 SNOMEDCT_US:254701007 NCIT:C2921 A basal cell carcinoma is the most common type of skin cancer which rarely metastasizes, but is still considered malignant because it can cause significant destruction and disfigurement by invading surrounding tissues. In 80 percent of all cases, basal cell cancers are found on the head and neck or on other sun-exposed areas of the body. Apart from sporadic basal cell carcinoma, there are hereditary conditions such as the basal cell nevus syndrome where patients develop multiple basal cell carcinomas throughout life. Basal cell nevus Basal cell carcinomas HP:0002671 Basalioma SNOMEDCT_US:1338007 Neoplasm of the skin