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February 1991

Diagnostic and Therapeutic Considerations for Cutaneous Mycobacterium haemophilum Infections

Author Affiliations

Department of Dermatology; Department of Pathology Baylor College of Medicine 1 Baylor Plaza Houston, TX 77030; Department of Microbiology University of Texas Health Science Center at Tyler Tyler, TX 75710

Arch Dermatol. 1991;127(2):276-277. doi:10.1001/archderm.1991.01680020148035

To the Editor.—  Among the nontuberculous species of Mycobacterium isolated from cutaneous lesions, Mycobacterium haemophilum has received the least attention. Since first described in 1978,1 fewer than 20 cases have been reported worldwide. Clinical disease is usually associated with an underlying condition resulting in immunosuppression, and is characterized by cutaneous nodules or plaques on the extremities. The unique features that separate M haemophilum from other Mycobacterium are the requirement of hemin for growth, and an unusual antimicrobial susceptibility pattern. We report a case in a nonimmunosuppressed host where the organism was isolated on routine bacteriologic medium and the patient was successfully treated with ciprofloxacin.

Report of a Case.—  In August 1988, a 65-year-old white woman was evaluated for a scaly erythematous papular eruption on her right forearm (Fig 1) that developed postoperatively following coronary artery bypass surgery. The rash had been present for 4 months and was unresponsive to

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