How Much Do You Know About Types of Skin Cancer
Allison Tsai | April 12, 2013
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There are three main types of skin cancer.
True. These include basal cell carcinoma, squamous cell carcinoma, and melanoma. There are a few other rare types of skin cancer, such as Merkel cell carcinoma, skin lymphoma, Kaposi sarcoma, skin adnexal tumors, and sarcomas.
Squamous cell carcinoma is the most dangerous type.
False. Melanoma is the most serious type of skin cancer, and causes the most skin cancer deaths. Melanoma is the most likely of the three types to spread to other areas of the body, according to the National Cancer Institute (NCI).
Basal cell carcinoma is the most common type of skin cancer.
True. More than two million cases of basal cell skin cancer are diagnosed each year in the United States the NCI says.
Squamous cell carcinoma is the most common skin cancer in dark-skinned people.
True. It is usually found in places that do not see a lot of sunlight, such as the legs and feet. People with dark skin also rarely get melanoma. If they do, it is often found under nails, on the palm of the hands or on the soles of the feet, according to the NCI.
Basil cell carcinoma is usually found in places that have not seen the sun.
False. Basil cell is usually found in places that get a lot of sun, such as the face, particularly the nose, head, neck, and backs of the hands.
Melanoma is cancer that begins in the melanocytes.
True. Melanocytes are cells that produce melanin, the pigment that determines skin coloring.
Squamous cell carcinoma rarely spreads to other places in the body.
False. Basal cell carcinoma is the type least likely to spread to other parts of the body. Squamous cell does sometimes spread, and melanoma is the most likely to spread, according to the NCI.