Difference between revisions of "Melanocytic lesions"

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===General===
===General===
*Usually benign.
*Usually benign.
*Generally ''not'' a precursor of ''[[melanoma]]'', as the name ''dysplastic nevus'' may suggest.
*Clark nevi are ''not'' considered precursor of ''[[melanoma]]'', as the name ''dysplastic nevus'' may suggest.
**Large numbers of these nevi (10-100) are seen in ''dysplastic nevus syndrome''.<ref>{{OMIM|155600}}</ref>
*Large numbers of these nevi (10-100) are seen in ''dysplastic nevus syndrome''.<ref name=omim155600>{{OMIM|155600}}</ref>  
**Individual with this syndrome have an increased risk of melanoma and approximately one third of their melanomas arise from a ''Clark nevus''. The other two thirds arise ''de novo''.


===Microscopic===
===Microscopic===