Skin Cancer Research Essay
Skin Cancers Text
There are three types of skin cancers: basal cell carcinoma, squamous cell carcinoma, and malignant melanoma.
Basal cell carcinoma is the most common of the three types. Cells just below the surface of the skin become cancerous, causing a tumor to develop that often becomes an ulcer. The cell damage is usually the result of long-term exposure to strong sunlight, but it can be years before skin cancer develops. The ulcer grows slowly as it destroys the tissue at its edges. Unlike many malignant or life threatening growths, it does not spread to other parts of the body until a long time after it forms.
A small, flesh-colored lump appears on the skin when basal cell carcinoma is present. The face …show more content…
A firm, fleshy, hard-surfaced lump is apparent with squamous cell carcinoma. The lump can look like a wart or an ulcer. It appears most commonly on a place constantly exposed to sunlight such as the ears or hands. Those most at risk live in sunny areas, have light skin, and are middle aged or older.
If the cancer reaches an advanced stage, it might metastasize. If this happens, the outlook is poor and death can occur. Fortunately, treatment is effective is the problem is detected early.
Squamous cell carcinoma can be prevented by using a sun block lotion and by wearing protective clothing. People who develop a lump that does not heal in two weeks should see a physician who is likely to biopsy the suspected tumor. Most cancers are removed through conventional surgery or cryosurgery. Most patients are completely cured if treated early. Regular checkups are recommended for five years to be certain the cancer does not reoccur.
Malignant melanoma is the most serious type of skin cancer because it often metastasizes and spreads throughout the body. Changes in underlying skin cells that produce melanin, skin coloring pigment, cause a malignant tumor to develop. This type of cancer develops from pigment cells in a mole present since birth, in a mole developed later, or in what looks like ordinary skin.
Thus, a melanoma can develop on any skin surface. It usually