[Oral acitretin and topical imiquimod as neoadjuvant treatment for giant basal cell carcinoma].

Giant basal cell carcinoma (BCC) is defined as a tumor with a diameter of 5 cm or more. Surgery, the treatment of choice for any type of BCC, can cause considerable anatomical damage in large tumors. In 2 patients with giant BCC we therefore provided neoadjuvant treatment with a combination of oral acitretin and topical 5% imiquimod. Acitretin is a systemic retinoid used for primary prevention of nonmelanoma skin cancer. Imiquimod is an immunomodulator whose approved indications include treatment of nonfacial superficial BCC less than 2 cm in diameter. Previous studies have demonstrated a synergic anticancer effect of both drugs in vitro and in vivo. This combination produced a marked reduction in tumor mass in our patients. Later we were able to provide definitive treatment, which achieved complete remission of the tumors.