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- • Primary melanomas can occur even in dark-skinned people on the palms and soles, under the skin and in the
- membranes lining the mouth, rectum and anus.
- • White people with a large number of moles are at increased risk. Those with sporadic dysplastic nevi—unusual
- moles that under the microscope have features resembling melanoma—are probably not at increased risk of
- developing melanoma from those nevi. People with a strong family history, however (familial dysplastic nevus
- syndrome), have an increased tendency to develop melanoma.
-