Atypical mycobacterial infection is due to non-tuberculous mycobacteria. Cervical lymphadenitis is the most common non-tuberculous mycobacterial infection in children less than five years old. Because of the chronicity of the infection the skin overlying the infected node is indurated with a dark to purplish hue. So called atypical mycobacteria (tuberculoid bacilli) include the following: M. kansasii (Kansas), M. marinum, M. scrofulaceum, M. flavescens, M. gordonae, M. obuense, M. gilvum, M. duvali, M. szulgai, M. intracellulare, M. xenopi (littorale), M. ulcerans, M. buruli, M. terrae, M. fortuitum (minetti, giae), M. chelonae.
Atypical Mycobacterial Infection, Mycobacterial Infection, Atypical
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