LYCOS RETRIEVER 
Melanoma: Moles
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The following quote comes from an unattributed news article about melanoma vaccine from the internet: "Melanoma vaccines are designed to rev up the immune response to renegade cells. The vaccines contain antigens--molecules found on the surface of tumor cells--modified to look more dangerous to the immune system. Which tumor antigens are most likely to elicit a strong immune response against melanoma cells is a matter of debate.
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Melanoma usually presents as an irregular mole, with the "ABCD" characteristics described above. This can be a preexisting mole that has changed or a newly developed mole. More advanced lesions may have inflammation, oozing, crusting, itching, ulceration or bleeding.
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The first step in finding melanoma is to learn about moles, which are common pigmented skin lesions that may be flat or raised. There are two types of moles, ordinary and atypical (the medical term for atypical moles is dysplastic nevi). A mole may be atypical if it has one or more of the characteristics shown in the right hand column of Table 1 (underneath the photos below). Ten to fifteen percent of the white population has atypical moles.
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Moles