Disseminated Mycobacterium scrofulaceum Infection: A Potentially Treatable Complication of AIDS

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Abstract
Disseminated Mycobacterium scrofulaceum infection has rarely been reported (only 8 cases to date), and no case of infection associated with AIDS has been reported in detail. We report a case of disseminated M. scrofulaceum infection in an AIDS patient that presented as chronic ulcerative and nodular skin lesions with probable cavitary lung involvement. We discuss reported cases of disseminated M. scrofulaceum infection and features of human immunodeficiency virus (HIV)-associated disease due to mycobacteria other than tuberculosis. Although our patient died before susceptibility testing could be completed, the M. scrofulaceum isolate was found to be susceptible to clarithromycin, ethambutol, and clofazimine. Physicians who evaluate skin lesions in HIV-infected persons should perform appropriate mycobacterial studies and search for disseminated disease. Drug susceptibility testing for mycobacteria other than tuberculosis is not yet standardized, but the broth dilution method, currently being studied in clinical trials of treatment for Mycobacterium avium complex, may be superior to older methods. After the possibility of Mycobacterium tuberculosis infection has been excluded, physicians should consider administering initial empirical therapy with two or more drugs, including a newer macrolide, to AIDS patients with disseminated mycobacterial disease.

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