Punched out edge of ulcer

# Punched out edge is characteristic of which type of ulcer?
a) Tuberculosis
b) Rodent
c) Syphilitic
d) Non specific

The correct answer is C. Syphilitic.

Non-specific ulcer = Shelving edge
Tuberculous ulcer = Undermined edge
Rodent ulcer = Raised, pearly white and beaded
Squamous cell carcinoma = Rolled out, everted
Syphilitic = Punched out edge; Base covered with wash leather slough

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