Spot the diagnosis 135-138

(135) A boy of sixteen has come in S.O.P.D for an ulcer in the axilla . The margin of the ulcer is thin ,undermined and bluish . Spot the diagnosis?
(136) A man of fifty has come in S.O.P.D for an ulcer on the penis. The margin of the ulcer is raised and everted . Spot the diagnosis?
(137) A man of forty has come in the S.O.P.D for an ulcer on the side his nose . The margin of the ulcer is raised and beaded . Spot the diagnosis ?
(138) A man of fifty has come with an ulcer on his tongue . The margin is punched out . Spot the diagnosis ?


Answers
(135) Tubercular ulcer .
(136) Carcinoma of penis .
(137) Rodent ulcer .
(138) Syphilitic ulcer .