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Results 1 - 1 of 1 for Benign melanocytic skin nevus
  1. Are moles determined by genetics?: MedlinePlus Genetics 
    ... which are called congenital nevi, are almost always benign. Rarely, a very large mole, called a giant congenital melanocytic nevus , is present at birth. In rare cases, the most serious type of skin cancer (called melanoma ) may develop in this type ...
    https://medlineplus.gov/genetics/understanding/traits/moles - Genetics