Chancroid is one of the genital ulcer diseases (GUD) and a risk factor for HIV infection. It tends to show atypical lesions, involve nongenital sites, and respond slowly to therapy as compared to a patient without HIV.
Cause: Haemophilus ducreyi
Features that may be found in an HIV-positive patient:
(1) multiple ulcerations
(2) ulcers in non-genital sites including the oral cavity, probably due to autoinoculation
(3) ulcers "atypical" for chancroid
(4) slower response to therapy or failure to respond
An HIV-positive patient with chancroid may also have other sexually-transmitted diseases (mixed).
The course and appearance are affected by the patient's immune status, which should be determined and monitored.
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