Two Cases of Cutaneous Infections due to Mycobacterium marinum / 대한피부과학회지

We report two cases of cutaneous Mycobacterium(M.) marinum infections in a 43-year-old man and a 31-year-old woman who had multiple subcutaneous nodules on the left upper extremity and an erythematous ulcer on the right elbow, respectively. Skin biopsy specimens revealed chronic granulamatous inflammation and AFB positive bacilli in the dermis. The culture from tissue specimens on Lowenstein-Jensen media at 30'C for 10 days, yielded cream-colored colonies, which became yellow when exposed to light. The organism was identified as M. marinum by selected biochemical reactions. The patients were treated with surgical excision followed by administration of minocycline and administration of minocycline, respectively.