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Melanoma/Skin Cancer Health Center

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What Happens

Melanoma develops when normal pigment-producing skin cells called melanocytes become abnormal, grow uncontrollably, and invade surrounding tissues. Usually only one melanoma develops at a time. Melanomas can begin in an existing mole or other skin growth, but most start in unmarked skin.

When melanoma is found early, it can often be cured by surgery to remove it. But after melanoma spreads, it is harder to cure.

Recommended Related to Melanoma/Skin Cancer


Note: Separate PDQ summaries on Skin Cancer Prevention, Skin Cancer Treatment, and Levels of Evidence for Cancer Screening and Prevention Studies are also available. Interventions The only widely proposed screening procedure for skin cancer is visual examination of the skin, including both self-examination and clinical examination. Benefits In asymptomatic populations, the effect of visual skin examination on mortality from nonmelanomatous skin cancers is unknown. Further, the evidence...

Read the Overview article > >

Experts talk about prognosis in terms of "5-year survival rates." The 5-year survival rate means the percentage of people who are still alive 5 years or longer after their cancer was discovered. Remember that these are only averages. Everyone's case is different, and these numbers don't necessarily show what will happen to you. The estimated 5-year survival rate for melanoma is:2

  • 98% if cancer is found early and treated before it has spread.
  • 62% if the cancer has spread to close-by tissue.
  • 15% if the cancer has spread farther away, such as to the liver, brain, or bones.

WebMD Medical Reference from Healthwise

Last Updated: November 14, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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