Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Mycobacterium avium complex infection
Introduction
Overview
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References
Historical Perspective
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Classification
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Pathophysiology
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Overview
Pathophysiology
Etiologic Agent:
Mycobacterium avium complex (comprising M. avium and M.intracellulare).
Transmission:
Although the mode of transmission is unclear, MAC is most likely environmentally acquired.
References
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Causes
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Differentiating Mycobacterium avium complex infection from other Diseases
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Epidemiology and Demographics
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Overview
Epidemiology and Demographics
Not reportable. Population-based data available for Houston and Atlanta metropolitan areas suggest a rate of 1/100,000/year. Incidence is decreasing among HIV- infected patients as a result of new treatment modalities e.g., combination therapy with nucleoside reverse transcriptase inhibitors and protease inhibitors, as well as antimycobacterial prophylaxis. Incidence is decreasing because of changes in treatment for HIV-infected patients; however, antimicrobial resistance may be increasing.
References
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Risk Factors
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Risk Factors
HIV-infected persons. Rarely in children or nonimmuno-compromised persons.
References
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Natural History, Complications and Prognosis
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References
Diagnosis
Diagnosis
History and Symptoms | Physical Examination | Laboratory Findings | Chest X Ray | CT | MRI | Echocardiography or Ultrasound | Other Imaging Findings | Other Diagnostic Studies
Treatment
Treatment
Medical Therapy | Primary Prevention | Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies
Acknowledgements
Acknowledgements
The content on this page was first contributed by: C. Michael Gibson, M.S., M.D. Template:SIB
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]