This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neoplasia, Subject name: Surgery
Not a premalignant ulcer: 
Select and explain. 
A. Bazin's ulcer, B. Pagets disease of nipple, C. Marjolin's ulcer, D. Lupus vulgaris
A: Bazin's ulcer
Answer: A: Bazin's ulcer 
Explanation: Ans: a (Bazin's ulcer)Ref: Bailey & Love, 24th ed, p. 208 for 'c' p. 1837 for 'b'& 23rd ed, p. 148 for 'c' p. 181 for 'd' S. Das surgery, 3rd ed, p. 129 for 'a' p. 130 for 4d'