Basal cell carcinoma is indeed really a cancer, and is in fact the most common type of skin cancer. Fortunately, basal cell carcinoma is relatively slow-growing, but don’t take this to mean you can leave it untreated. Basal cell carcinomas can grow wide and deep if untreated and spread to surrounding bone or tissue. For example, my surgeon told me that a small area of basal cell on the skin, no larger than the size of a pencil eraser, can be the size of a silver dollar under the skin! Get regular skin checks from a doctor, and take good care of your skin!