Clinical Microbiology Reviews, Jul 1995, 440-450, Vol 8, No. 3
JW Tappero, BA Perkins, JD Wenger and TG Berger
Bacillary angiomatosis (BA) presents most commonly as a cutaneous disease
and is caused by two organisms. Bartonella (Rochalimaea) henselae and
Bartonella (Rochalimaea) quintana. Biopsy confirmation of cutaneous BA is
essential because lesions can mimic nodular Kaposi's sarcoma in appearance.
Although the vast majority of human immunodeficiency virus (HIV)-infected
patients with BA have CD4 lymphocyte counts of less than 100 cells per mm3,
the disease responds well to antimicrobial therapy. Staphylococcus aureus
is the most common bacterial skin pathogen affecting HIV-infected patients.
The prevalence of skin disease due to S. aureus may be explained by high
nasal carriage rates for the organism ( > or = 50%) and altered immune
function in conjunction with an impaired cutaneous barrier. Herpes simplex
virus causes mucocutaneous disease early in the course HIV infection and
ulcerative lesions at any site in advanced HIV infection. Herpes zoster is
common early in the course of HIV infection; recurrent and disseminated
herpes zoster infections are characteristic of patients with advanced HIV
disease. Acyclovir resistance is usually seen in patients with large,
untreated, ulcerative lesions of herpes simplex virus and in patients with
chronic, verrucous lesions of varicella-zoster virus. Cutaneous
cryptococcosis, histoplasmosis, and coccidiomycosis are markers of
disseminated disease and require biopsy confirmation. Scabies is easily
diagnosed but may be atypical in presentation and difficult to eradicate in
advanced HIV disease.
Copyright © 1995 by the American Society for Microbiology. All rights reserved.
Cutaneous manifestations of opportunistic infections in patients infected with human immunodeficiency virus
Childhood and Respiratory Diseases Branch, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
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