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  » Atlas of skin diseases  »  Dysplastic nevus-trunk
These lesions are usually less well-circumscribed than intradermal nevi. Often, the pigment "bleeds" into the surrounding skin as seen in this lesion. Dysplastic nevus syndrome is a debated clinical entity in which a large number of dysplastic nevi are present. Dysplastic nevus syndrome is also called B-K mole syndrome, atypical mole syndrome, and familial atypical mole-melanoma syndrome. There is evidence that these patients are at higher risk for developing melanoma.