Syphilitic toes. Syphilis is a sexually transmitted disease (STD) caused by the spirochete bacterium Treponema pallidum. It has often been called 'the great imitator' because so many of the signs and symptoms are indistinguishable from those of other disea

Getty Images reserves the right to pursue unauthorized users of this image or clip. If you violate our intellectual property you may be liable for: actual damages, loss of income, and profits you derive from the use of this image or clip, and, where appropriate, the costs of collection and/or statutory damages up to $150,000 (USD).