Return to Syphilis Pictures from CDC | Hardin MD : Syphilis
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The ulcerative primary syphilitic lesion on this patient's finger was due to lab acquired disease. The primary stage of syphilis is usually marked by the appearance of a single sore known as a chancre, but there may be multiple sores. The chancre is usually firm, round, small, and painless. Content Providers(s): CDC/J. Pledger |

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