Overview:
Skin Cancer is a cancer that forms in the tissues of the skin. It grows uncontrollably and affects the normal function of the skin. If left unchecked it can spread to other parts of the body. Most skin cancers form in older people on parts of the body exposed to the sun or in people who have weakened immune systems. Skin cancer can occur anywhere on the body, but it is most common when the skin is often exposed to sunlight, such as the face, neck, hands, and arms.
Symptoms of Skin Cancer:
Skin cancer is often painless and each type can look different.
- BCC often appears as a small red or pink, waxy or shiny lump.
- SCC often appears as a small pink lump with a hard or scaly or crusty skin.
- Melanoma usually starts as a dark spot or mole.
Symptoms that may indicate skin cancer include any mole, spot, lump or patch that:
- doesn't heal after four weeks
- gets bigger - especially over 7mm (a quarter of an inch) in diameter
- changes shape - look for an irregular edge
- changes colour - darkens, becomes patchy or multi-shaded
- becomes inflamed
- is itchy or painful
- bleeds or is crusty
These symptoms aren't always caused by skin cancer but if you have them, see your GP.
Types of Skin Cancer:
Like all body tissues our skin is made up of cells: basal cells, squamous cells and melanocytes. Skin cancer types are named after the skin cell in which the cancer develops: basal cell carcinoma, squamous cell carcinoma and melanoma.
- Melanoma: Skin cancer that forms in melanocytes (skin cells that make pigment) is called melanoma. Melanoma is the deadliest type of skin cancer.
- Basal Cell Carcinoma: Skin cancer that forms in the lower part of the epidermis (the outer layer of the skin) is called basal cell carcinoma.
- Squamous Cell Carcinoma: Skin cancer that forms in squamous cells (flat cells that form the surface of the skin) is called squamous cell carcinoma.
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What is Bone Marrow?
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