Atypical mycobacterial diseases caused by a variety of obligate or facultatively pathogenic Mycobacteria other than those of the Mycobacterium tuberculosis complex. Involvement depends on the type of Mycobacterium, the route of infection, and the immu...
Atypical mycobacterial diseases caused by a variety of obligate or facultatively pathogenic Mycobacteria other than those of the Mycobacterium tuberculosis complex. Involvement depends on the type of Mycobacterium, the route of infection, and the immune status of the host. Various organs may be involved. Mycobacteria other than M. tuberculosis (MOTT) are more often the cause of skin disease than M. tuberculosis. Diagnosis relies on histopathologic analysis and the results of culture. Incidence is unknown, but endemic areas exist for certain types of MOTT. Treatment is unlike that of tuberculosis, and no strict international guidelines have been developed. Effective antibiotics are known for each mycobacterial species but should be checked by sensitivity testing. The topic of this bacterial skin diseases focus session is Atypical mycobacterial diseases. Because MOTT infections usually closely mimic infections with M. tuberculosis, and the bacteria have strict and often unusual requirements for culture, they are still probably underdiagnosed. Recently cutaneous mycobacterial diseases have been reported in healthy individuals following increase of invasive cosmetic treatment and surgery, especially injection of filler, mesotherapy liposuction, etc. I hope this focus session is helpful to dermatologists for understanding and broadening the knowledge about up-to-date trends in atypical mycobacterial diseases.