Dysplastic nevus syndrome
（重定向自FAMMM）
Dysplastic nevus syndrome (also known as "Atypical Mole Syndrome (AMS)", "Familial atypical multiple mole–melanoma (FAMMM) syndrome", "familial melanoma syndrome," and "B-K mole syndrome") is a cutaneous condition described in certain families, and characterized by unusual nevi and multiple inherited melanomas.