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Causes of melanoma. Ultraviolet light exposure from the sun or from tanning beds causes most melanomas. Melanoma may appear at a spot where you have an existing mole. But if an unusual spot shows ...
This often leads to a higher risk of melanoma, a serious type of skin cancer. [10] Dysplastic nevi are more likely than ordinary moles to become cancerous. While dysplastic nevi are common and many people have a few of these abnormal moles, having more than 50 ordinary moles also increases the risk of developing melanoma. [11]
Melanoma is the most dangerous type of skin cancer; it develops from the melanin-producing cells known as melanocytes. [1] It typically occurs in the skin, but may rarely occur in the mouth, intestines, or eye (uveal melanoma). [1] [2] In women, melanomas most commonly occur on the legs; while in men, on the back. [2]
A blue nevus is a type of coloured mole, typically a single well-defined blue-black bump. [1] [2] The blue colour is caused by the pigment being deep in the skin. [4] Diagnosis is by visualisation and dermoscopy. [4] A biopsy is sometimes performed, or the whole lesion surgically removed. [3]
Spitz nevus is the medical name for a benign mole. They share a similar appearance with other moles, some that are cancerous. Learn more here.
For example, Eilian's cancerous mole was much darker than the other moles on her body, she notes. Melanomas are more common in “very fair-skinned people,” who have red or blond hair, or blue ...
Halo nevus is a mole that is surrounded by a pale ring or 'halo'. [1] It is generally noticed in the summer, when surrounding skin tans, and usually occurs on the chest, but can be anywhere. [1] There may be one or, more typically, several. [2] Onset is usually in teenagers and young adults.
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