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What is which is responsible for the above condition and explain in detail?
Fish Tank Granuloma * Caused by atypical mycobacterial infection * Recreational or occupational exposure to contaminated freshwater or saltwater * Affects elbows, knees, feet, knuckles or fingers * Often single lump which causes crusty sore or abscess * Other lumps on course of lymphatic drainage * More widespread if immuno-compromised * Treated with long course of minocycline or co-trimoxazole 6-12 weeks ref : ananthanaryana 9th ed