<prompt> Maximum malignant potential is seen inEpidermal nevusJunctional nevusDermal nevusBlue nevus  <response>: The diagnosis can be made by visual inspection alone. Although most cases of blue nevi are benign, there is a small possibility that a cellular blue nevus can undergo malignant transformation and become a malignant cellular blue nevus MCBN. Thus, a biopsy of any changing or suspicious lesion should be done Ref Harrison20th edition pg 1456 