Main » Infectious diseases » Infections Acquired through the Skin and Mucous Membranes » Mycobacterium ulcerans and Other Tropical Ulcers
Photo 1. Typical Buruli ulcer in a Nigerian child. The condition is characterised by gross, necrotising skin ulcers in which numerous acid fast bacilli are present (M. ulcerans). The disease occurs in localised tropical areas in all continents.
Photo 2. Mycobacterium ulcerans in section of ulcer. Acellular necrosis occurs involving the dermal layers and subcutaneous fat. Acid-fast bacilli are found in the necrotic material. (x 900)
Photo 3. Tropical (pnagedaenic) ulcer. Chronic necrotising ulcers involving the skin and subcutaneous tissues are common in country areas in the humid tropics. They contain a mixed bacterial flora including Borrelia vincenti and fusiform bacteria.
Photo 4. Bone involvement in tropical ulcer. Sequestra result when bone involvement occurs.
Photo 5. Cancrum oris. A garvgrenous condition of the facial region associated with Vincent's organisms may follow any acute systemic disease in malnourished infants in the tropics. Gross disfigurement usually results.
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» The superficial mycoses
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