Giant basal cell carcinoma of the forehead with extensive intracranial involvement

Basal cell carcinoma (BCC) is the most common malignant skin lesion and is frequently curatively treated with local excision. Improper removal or neglect of BCC is a particular problem for head and neck surgeons. We describe a case of a recurrent BCC that aggressively grew from the forehead skin through the skull and into the frontal lobe. We also present a review of the literature. Despite its fairly benign growth pattern, BCC should never be underestimated, and care should be taken not only in the complete primary excision but also in cancer surveillance.