Mycobacterium kansasi and M. marinum
• Causes lung disease clinically resembling tuberculosis.
• It is susceptible to the standard antituberculosis drugs.
• Causes "swimming pool or "fish tank” granuloma .
• These granulomatous, ulcerating lesions occur in the skin at the site
of abrasions incurred at swimming pools and aquariums.
• Treatment with a tetracyclines
• Causes lymphadenitis
Mycobacterium avium and M. intracellulare
Mycobacterium avium intracellulare complex
• Cause tuberculosis like illness usually in immunocompromised
• Highly resistant to antituberculosis drugs
Mycobacterium fortuitum and M. chelonei
Mycobacterium fortuitum-chelonei complex
• Rarely cause human disease.
• Infections occur in immunocompomised patients and patients
with catheters or prosthetic joints.
• Resistant to antituberculous drugs.