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The Korean Journal of Pathology 2001;35(2): 168-171.
Polyomavirus Renal Infection Confirmed by Electron Microscopy in a Patient with Acquired Immunodeficiency Syndrome: An Autopsy Case Report.
Na Rae Kim, Byoung Kwon Kim, Je G Chi
Department of Pathology, Seoul National University College of Medicine, Seoul 110-799, Korea. pathr@plaza.snu.ac.kr
Polyomavirus infection commonly occurs in childhood and adolescence, remaining in a latent status and reactivated in an immunocompromised status. We report herein an autopsy case of HIV-positive 41-year-old male, who succumbed to disseminated Kaposi sarcoma and cytomegalovirus infection involving the gastrointestinal tract, lung and brain. The involved kidney showed minimal inflammatory infiltrates and tubular injury: the nuclei of tubular epithelial cells were markedly enlarged with central clearing and peripheral chromatin margination or bore basophilic nuclear inclusions. Inclusion-bearing tubular epithelial cells were negative for the viral immunostains including herpes simplex virus, Epstein-Barr virus and adenovirus. Electron microscopy disclosed 42 nm intranuclear viral particles compatible with the BK polyomavirus. The viral particles were icosahedral in paracrystalline array and nonenveloped.
Key Words: Polyomavirus; HIV; Kidney; Electron Microscopy
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