Mycobacterium causing skin ulcer – a) M. smegmatisb) M. scrofulaceumc) M. ulceransd) M. fortuitume) M. marinum

Mycobacteria causing skin infections Post-trauma abscess → M.chelonae, M.fortuitum, M.terrae Swimming pool granuloma → M.marinum(M. Balanei) Buruli ulcer → M.ulcerans Lupus vulgaris → M.tuberculosis Scrofuloderma → M.tuberculosis  Abscess and granuloma may break to fonn an ulcer. So, all the organism in above list can cause skin ulcer.