Relationship Between Pharmacokinetics and Safety of Vismodegib - OPTIVISMO-1

Inclusion Criteria: * Patients with BCC and annexial carcinoma histologically proven under treatment or new patients under vismodegib or patients who restarted treatment * 18 years-old or older * Complete medical record * Members or beneficiaries of a social security system, * Patients must have given informed consent, free and written. Exclusion Criteria: * Patients with or without BCC and not treated with vismodegib * BCC patients who stopped treatment with vismodegib due to non-response or progression on treatment * Patients under 18 years-old * Patients whose medical record is incomplete * Unaffiliated subjects or not beneficiaries of a security system social, * Patients who have not been informed and have not given their consent, free and written, * Pregnant and childbearing women without effective contraceptive method * Patients with confusional state