Skin Cancer

Skin cancer begins in cells in the upper layer of your skin.

  • There are three different types of skin cancer:
  • squamous cell carcinoma
  • basal cell carcinoma
  • melanoma

All three types of cancer begin in the cells of the epidermis, the skin's upper layer.

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. This type of cancer can appear 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
Basal cell carcinoma

Basal cell carcinoma may have slightly raised edges with a crusty, indented center. 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).

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 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.

Melanoma

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.

Glossary
Basal Cell Carcinoma
Cancer of the basal cell.
Cryotherapy
Super-freezing of tissue in order to destroy it. Used to treat malignant tumors, control pain, control bleeding, and reduce brain lesions.
Epidermis
The upper or outer layer of tissue that makes up the skin.
Melanocytes
Pigment-producing cells located in the epidermis.
Melanoma
A highly malignant type of skin cancer that arises in melanocytes, the cells that produce pigment. Melanoma usually begins in a mole.
Squamous Cell Carcinoma
Cancer of the squamous cell.
Tumor
An abnormal mass of tissue that results from excessive cell division. Tumors perform no useful body function. They may either be benign (not cancerous) or malignant (cancerous).