[Basal cell carcinoma].

Basal cell carcinoma (BCC) accounts for 80% of skin cancers, and its frequency is increasing substantially and regularly. Its principal risk factor is sun exposure, especially strong and intermittent exposure causing phototrauma. BCC occurs most frequently on the head and neck. The most frequent clinical forms are nodular, superficial and sclerosing. Management guidelines were issued in 2004, according to the methodology of ANAES (the national agency of health care accreditation and evaluation (ANAES) at the request of the French Society of Dermatology. Histologic examination of BCC is almost always essential. Surgery remains the standard of treatment; other treatments must be considered as second-line choices. Clinical monitoring must be suggested to the patient after treatment, because of the risk of recurrence. A consultation at least once a year for at least 5 years and preferably for life is recommended.