Basal cell carcinomas
Basal cell carcinoma is a type of skin cancer. Basal cell carcinoma often appears as a slightly transparent bump on the skin, though it can take other forms. Basal cell carcinoma occurs most often on areas of the skin that are exposed to the sun, such as your head and neck.
Malignant melanoma
Melanoma is the most serious type of skin cancer. Melanoma mainly form in your skin, but can also form in your eyes and, rarely, inside your body, such as in your nose or throat.
Squamous cell carcinomas
Squamous cell carcinoma of the skin is usually not life-threatening, though it can be aggressive. Untreated, squamous cell carcinoma of the skin can grow large or spread to other parts of your body, causing serious complications.