Buruli ulcer is still a public health problem in Côte d'Ivoire. Its physiopathology is poorly described and suggests a new clinical form. We report a clinical case in a 18-year-old patient who had a cold abscess on the right elbow. The histopathology test revealed a Mycobacterium ulcerans infection. The treatment consisted in antimycobacterial therapy and surgical care. The clinical healing was observed during 4 months of hospitalization. This form of Mycobacterium ulcerans with cold abscess, the first case described so far, requires great vigilance in clinical detection of cases and underlines the importance to intensify microbiological research mainly in endemic areas.
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