ID#: 6788
Caption:
This image depicts a close view of a patient’s anus and perineum, revealing the presence of what proved to be a primary anal syphilitic chancre, which manifested due to a primary staged syphilitic infection, caused by the bacterium, Treponema pallidum. Primary syphilis usually presents itself as a genital ulcer, or chancre that is usually firm, round, small and painless, and appears at the spot where T. pallidum bacteria entered the recipient’s body. However, when anal intercourse is the mode of transmission, as was the case here, the site of inoculation can then be the anorectal region, hence, the reason for the anorectal location of the primary syphilitic chancre.
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Content Provider(s): CDC/ Susan Lindsley
Creation Date: 1977
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Copyright Restrictions: Permission is not required for public domain images, however, these images are provided by CDC and are available for personal, professional, and educational use with appropriate attribution. Redistribution must credit CDC and, where known, the individual photographer, and identify the CDC website as the free source. For additional terms see Use of Agency Materials | Other | CDC