Malignant melanoma most often develops from: (A) Dysplastic naevus, (B) Junctional naevus, (C) Intradermal naevus, (D) Blue naevus
Answer is A. Dysplastic naevus is an irregular proliferation of atypical melanocytes at the basal layer of epidermis Dysplastic naevus has a familial inheritance and carries a 5-10 per cent risk of forming a superficial spreading melanoma. Bailey and Love 26th edition Pg : 591