This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
Malignant melanoma most often develops from 
Select and explain. 
A. Dysplastic naevus, B. Junctional naevus, C. Intradermal naevus, D. Blue naevus
A: Dysplastic naevus
Answer: A: Dysplastic naevus 
Explanation: 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