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Mycobacterium chelonae
Not pigmented (non chromagen).
Epidemiology:
1) causes HIV-associated mycobacterial infection
2) environmental source: water, soil
Pathology:
1) cutaneous lesions
2) disseminated multiorgan disease
Laboratory:
- rapidly growing in culture
- cultures generally positive in 1 week vs 2-6 weeks
- also see Mycobacterium
Management:
- not susceptible to standard anti-tuberculosis drugs
- most strains are susceptible to clarithromycin & amikacin
- other potentially useful agents include: Bactrim, fluoroquinolones, tetracyclines, imipenem, cefoxitin
- minimum of 4 months of therapy
General
Mycobacterium
Properties
KINGDOM: monera
DIVISION: SCHIZOMYCETES
References
- Medical Knowledge Self Assessment Program (MKSAP) 11, 15, 17
American College of Physicians, Philadelphia 1998, 2009, 2015
- Harrison's Principles of Internal Medicine, 13th ed.
Isselbacher et al (eds), McGraw-Hill Inc. NY, 1994, pg 722