atypical mycobacterium

atypical Mycobacterium

Etymology: Gk, a + typos, without type, mykes, fungus, bakterion, small staff
a group of mycobacteria, including pathogenic and nonpathogenic forms, that are classified according to their ability to produce pigments, growth characteristics, and reactions to chemical tests. Mycobacteria, nontuberculosis (atypical) does not require isolation precautions.

atypical mycobacterium

Any Mycobacterium species exclusive of M lepra, M tuberculosis or M bovis—the latter two of which cause “typical” tuberculosis. Atypical mycobacteria are so designated because they grow more rapidly, produce heat-stable catalase, do not produce niacin or reduce nitrates, and are usually resistant to isoniazid.

atypical mycobacterium

Any Mycobacterium spp exclusive of M lepra, M tuberculosum, or M bovis–the latter 2 of which cause 'typical' TB; AM are so designated because they grow more rapidly, produce no niacin, don't reduce nitrates, produce heat-stable catalase,and are usually resistant to isoniazid. See Atypical mycobacterial infection, Multidrug-resistant tuberculosis.
References in periodicals archive ?
With review of literature and suspicion of atypical mycobacteria outbreak, cultures for Atypical Mycobacterium and AFB staining were sent for one patient, as she was still having discharge.
13) that describes a cluster of five cases of atypical mycobacterium ESI within a 20-month period at an institution in Hong Kong, it was noticed that all patients had used topical gentamicin ointment for ESI treatment or prophylaxis.
Atypical Mycobacterium furunculosis occurring after pedicures.
Patients with T-ceil disorders are prone to opportunistic infections, such as severe thrush, cryptococcus, cryptosporidium, and atypical mycobacterium, plus the pathogens that infect B-cell-deficient patients.
Patients with T-cell disorders are prone to opportunistic infections, such as severe thrush, cryptococcus, crypto-sporidium, and atypical mycobacterium, plus the pathogens that infect B-cell-deficient patients.
This deterioration was coincident with the report of an atypical mycobacterium growing from the bronchoscopy specimens.
In pilot phase II studies involving five patients, MiKasome therapy was able to resolve underlying Mycobacterium tuberculosis infections in three adults with tuberculosis and two children with atypical Mycobacterium infections, all of whom had failed conventional therapies.
15) Breast lesion caused by an atypical mycobacterium has recently been reported by Verfaillie G, et al.
Atypical mycobacterium lymphadenitis generally shows unilateral lymph node involvement; however, the patient reported here had bilateral lymphadenitis complicated by retropharyngeal abscesses.
Group A the children presented with clinically suspicious of TB lymphadenitis (TLC) and group B clinically Atypical Mycobacterium Lymphadenitis (non-TLC).

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