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Cytomegalovirus Co-infection in AIDS-associated Oral Kaposi’s Sarcoma

S. Meer^*, and M. Altini

Division of Oral Pathology, School of Oral Health Sciences, Private Bag 3, University of the Witwatersrand, WITS, 2050, Johannesburg, South Africa

Correspondence: ^* corresponding author, shabnum.meer{at}nhls.ac.za or meersa{at}dentistry.wits.ac.za

The increasing appearance of AIDS-associated oral Kaposi’s sarcoma (KS) in South Africa may be ascribed to the later start of the HIV epidemic, more patients reaching stages III and IV, and the inaccessibility of most patients to anti-retroviral therapy. The objective of this study was to demonstrate cytomegalovirus (CMV) co-infection in oral KS and to consider its possible significance. We reviewed 20 cases of oral KS in known HIV-positive patients without active CMV disease. HHV8 PCR and CMV immunohistochemistry were performed. HHV8 DNA was present in all cases. CMV inclusions were detected in five cases. The significance of CMV co-infection in oral KS is unclear. The inclusions suggest active infection, although there is no evidence to support CMV in the pathogenesis of KS. Nonetheless, it is vital that physicians be alerted to active CMV infection, so that timely intervention and careful observation can be instituted, ensuring early diagnosis and treatment.

KEY WORDS: Cytomegalovirus • CMV • AIDS • Kaposi’s sarcoma