This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Skin
A melanocytic naevus surrounded by a depigmented halo is called: 
Select and explain. 
A. Sutton's nevus, B. Meyerson's naevus, C. Cockade naevus, D. Nevus anaemicus
A: Sutton's nevus
Answer: A: Sutton's nevus 
Explanation: Sutton's nevus/halo's nevus : a halo of depigmentation appears around a preexisting melanocytic naevus. Meyerson's naevus is used to describe a melanocytic naevus that has developed an associated inflammatory reaction, which looks like eczema. Ref: Rook's textbook of dermatology, 8th edition Pg 54.20.