Mycobacterium Avium Complex
Other Names for this Disease
- Mycobacterium Avium
- Mycobacterium Avium-Intracellulare
- Mycobacterium Avium-Intracellulare infection
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Mycobacterium avium complex (MAC) refers to infections caused by two types of bacteria, Mycobacterium avium and Mycobacterium intracellulare. Is is associated with several different conditions including pulmonary MAC, which affects the lungs; disseminated MAC, which affects many different parts of the body; and MAC lymphadenitis, which causes swollen lymph nodes. MAC is spread when the bacteria, which can be found in water, soil and dust particles, are inhaled or ingested. Although these infections can occur in anyone, MAC primarily affects people who are immune compromised (i.e. - due to AIDS, lymphoma) or have underlying lung disease (i.e. COPD, lung cancer, cystic fibrosis). Treatment for MAC varies depending on the type of condition but may include antibiotics, antituberculosis drugs and/or surgery.
Last updated: 12/13/2014
- Judith S Currier, MD. Mycobacterium avium complex (MAC) infections in HIV-infected patients. UpToDate. May 2014;
- Janak Koirala, MD, MPH, FACP, FIDSA. Mycobacterium Avium-Intracellulare. Medscape Reference. March 2014; http://emedicine.medscape.com/article/222664-overview.
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- The AIDS Education and Training Center (AETC) offers information on Mycobacterium Avium Complex. Click on the link to view this information page.