Mycobacterium malmoense

Microbiology

Published in Jonathan M. Fishman, Vivian A. Elwell, Rajat Chowdhury, OSCEs for the MRCS Part B, 2017

Jonathan M. Fishman, Vivian A. Elwell, Rajat Chowdhury

Atypical mycobacteria (also known as non-tuberculous mycobacteria) – An important, diverse class of microorganisms that is commonly resistant to standard anti-tuberculous medications and exhibit different characteristics and growth rates in culture. Examples include Mycobacterium avium intracellulare, Mycobacterium kansasii, Mycobacterium malmoense to name just a few examples. They are responsible for causing lymphadenopathy in paediatric patients (particularly in the head and neck region) and in immunosuppressed individuals.

Rare case of Mycobacterium nebraskense presenting as asymptomatic cavitary lung lesion

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Journal Information

Published in Journal of Community Hospital Internal Medicine Perspectives, 2018

Omar Abdulfattah, Antony Lixon, Saroj Kandel, Ebad Ur Rahman, Sasmit Roy, Sumit Dahal, Zainab Alnafoosi, Frances Schmidt

Nontuberculous mycobacteria (NTM) species are generally free-living organisms and are normally found in soil and water. More than 140 species of NTM have been identified. They continue to emerge as a major cause of opportunistic infection. They can cause a variety of manifestations. The lungs are the most commonly involved sites, and they cause different pulmonary manifestations especially in the elderly with or without underlying lung disease [1,2]. Some of the common NTM to cause lung disease are Mycobacterium avium complex (MAC), Mycobacterium kansasii, Mycobacterium malmoense, and Mycobacterium xenopi [1–3].

Mycobacterium malmoense

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Microbiology

Rare case of Mycobacterium nebraskense presenting as asymptomatic cavitary lung lesion