There are three different types of skin cancer:
• Squamous cell carcinoma
• Basal cell carcinoma
All three types of cancer begin in the cells of the epidermis, the skin's upper layer.
Squamous cell carcinoma
Squamous cell carcinoma is the second most common type of skin cancer in fair-skinned people. It is twice as common in men as in women. Like other skin cancers, squamous cell carcinoma is caused by too much exposure to UV rays from the sun or indoor tanning booths. It may appear as a bump or scaly red patch FREQUENTLY on the face, neck, arms, scalp, ear, lips, or mouth. Squamous cell carcinoma is a slow-growing cancer but it can spread to other parts of the body. Because this cancer can spread, it is important to treat it as early as possible through surgery or radiation therapy.
Basal cell carcinoma
Basal cell carcinoma is the most common type of skin cancer in fair-skinned people. It usually shows up on the face, ears, scalp, neck, or upper body. Basal cell carcinoma may have slightly raised edges with a crusty, indented center appearing as:
• a red patch
• a pink, red, or white bump that is shiny or pearly
• a crusty, open sore that will not heal
• a scar-like area
This type of skin cancer grows very slowly and usually does not spread to other parts of the body. It is usually treated by removing the tumor (with surgery) or by freezing the tumor (cryotherapy).
Melanoma is the least common type of skin cancer, but is the most serious. It begins in the melanocytes. These are the skin cells that make the pigment called melanin, which gives skin its color. Melanoma can quickly spread to other parts of the body so it is important to detect and treat melanoma in its early stages. Melanoma is the leading cause of all skin cancer-related deaths