Mycobacterium avium-intracellulare infection
Three clinical forms of infection are seen:
- Primary post-traumatic inoculation (which is rare and usually seen in immunocompetent persons) – Most cases have been seen in children aged 2-10 years and do not progress to systemic disease.
- Disseminated systemic disease (DMAI) is most often seen in the immunocompromised patient and commonly involves the lungs, lymph nodes, liver, spleen, bone marrow, and skin. The patient may have fever, pulmonary symptoms, lymphadenopathy, hepatosplenomegaly, weight loss, and fatigue. Untreated DMAI is associated with increased mortality.
- Cervical adenitis in children (median age 3 years) is most commonly caused by MAI, having an indolent course and causing local destruction but only rarely disseminating.
MAI infection can also result in tenosynovitis.
A31.1 – Cutaneous mycobacterial infection
402979005 – Mycobacterium avium intracellulare infection of skin
- Mycobacterium marinum infection (fish tank granuloma)
- Atypical mycobacterial infections (other)
- Cutaneous tuberculosis
- Leishmaniasis (Old World and New World)
- Majocchi granuloma
- Pseudomonas folliculitis
- Halogenoderma (bromoderma, iododerma)
- Prurigo nodularis
- Erythema nodosum