Slide show: Sun damage
Image of lentigo maligna
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Lentigo maligna is a type of growth that develops in areas of long-term sun exposure, such as your face, hands or legs. Lentigo maligna starts as a dark flat spot that slowly darkens and enlarges. Eventually the spot may develop into a melanoma, a type of skin cancer that begins in the top layer of skin and then invades the underlying skin layer. See your doctor if you notice a:

  • New skin growth
  • Bothersome change in your skin
  • Change in the appearance or texture of a mole
  • Sore that doesn't heal or a bruise that fades and returns
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