Not a premalignant ulcer:
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'
Bazin's ulcer
Pagets disease of nipple
Marjolin's ulcer
Lupus vulgaris
Neoplasia