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Br J Dermatol. 1999 Sep;141(3):558-61.

Micrococcus folliculitis in HIV-1 disease.

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Departments of Dermatology and Pathology, National Naval Medical Center, 8901 Wisconsin Avenue, Bethesda, MD 20889-5600, USA.


Organisms with little pathogenic potential in immunocompetent hosts may produce disease in HIV-1 + patients. We describe three HIV-1 + patients in late disease who presented with pruritic papules with central ulceration over the face and arms. In all the patients the eruptions had been present for months, and the patients did not develop sepsis. Biopsy specimens in all the patients showed large Gram-positive cocci, forming tetrads. Colony morphology, catalase positivity and coagulase negativity, and resistance to nitrofurantoin were used to separate micrococci from staphylococci. Micrococcus species are usually considered normal inhabitants of the skin; however, in patients with HIV-1 disease, Micrococcus species can produce localized cutaneous infections.

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