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Download Diagnosis: Mycobacterium ulcerans Comment: Discovered in 1948
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Transcript
Diagnosis: Mycobacterium ulcerans Comment: Discovered in 1948 by Australian scientists investigating clusters of skin ulcer patients in Bairnsdale. Found in 33 countries (WHO) , most commonly in West and Central Africa. The environmental reservoir and mode of transmission is unknown, with no person to person transmission. There is negligible risk outside endemic areas. Clincially lesions present as slow growing papules which progress to necrosis and and undermined ulcer. Histology shows a necrotising dermatitis which can extend into the panniculus. Acid fast stains will document bacteria, and PCR can confirm type. Treatment is now largely medical with 8 weeks of combination antibiotics curative. Surgical excision may be effective if antibiotics contraindicated. References: MJA 2007; 186 (2) 64-68 Consensus recommendations for diagnosis, treatment and control of Mycobacterium ulcerans infection (Bairnsdale or Buruli ulcer) in Victoria, Australia MJA 2014; 200 (5) 267-270 Treatment and prevention of Mycobacterium ulcerans infection (Buruli ulcer) in Australia: guideline update Weedon’s Skin Pathology, 4th Edition, James W Patterson