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Discussion Regarding Its Pathogenetic Role

Esteban Daudén, MD, PhD; Guadalupe Fernández-Buezo, MD; Javier Fraga, MD, PhD; Laura Cardeñoso, MD; Amaro García-Díez, MD, PhD

Arch Dermatol. 2001;137:443-448.

Objectives  To investigate the significance of cytomegalovirus (CMV) in mucocutaneous lesions in patients with human immunodeficiency virus (HIV), and to elucidate its pathogenetic role in lesions genesis.

Design  Retrospective (study 1) and prospective (studies 2 and 3) surveys.

Setting  Departments of Dermatology, Pathology, and Microbiology at a university hospital in Madrid, Spain.

Patients  Seventeen HIV-infected patients with CMV presenting any type of mucocutaneous lesions (study 1); 27 HIV-positive patients with mucocutaneous vesicles and/or ulcers of any type and location (study 2); and 12 severely immunosuppressed HIV-positive volunteers (study 3).

Interventions  Mucocutaneous biopsy specimens from the lesions (studies 1 and 2) and from nonlesional skin (study 3) were analyzed by light microscopy, immunohistochemical analysis, and microbiological analysis (standard viral culture and shell-vial technique).

Main Outcome Measures  Clinical data; histologic, immunohistochemical, and microbiological findings.

Results  (1) Studies 1 and 2: Most of the lesions where CMV was found were ulcers localized mainly on perianal, genital, and perigenital areas, usually as part of polymicrobial infections, particularly herpes simplex and varicella-zoster virus infections. The finding of CMV was confirmed in all cases by light microscopy; microbiological analysis was rarely useful. The finding of mucocutaneous CMV inclusions allowed their early detection in extracutaneous locations. (2) Study 3: Cytomegalovirus was present on healthy skin of the perianal area in 3 patients, and on the forearm in 1 patient.

Conclusion  Cytomegalovirus does not play any significant pathogenetic role at least in most of the cutaneous lesions where it is found.

From the Departments of Dermatology (Drs Daudén, Fernández-Buezo, Fraga, and García-Díez), Pathology (Dr Fraga), and Microbiology (Dr Cardeñoso), Hospital de la Princesa, Autonoma University of Madrid, Madrid, Spain.

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