RT Book, Section A1 Bijol, Vanesa A2 Molmenti, Ernesto Pompeo SR Print(0) ID 1194189371 T1 Polyomavirus Nephropathy T2 Molmenti’s Kidney and Pancreas Transplantation: Operative Techniques and Medical Management, 2e YR 2023 FD 2023 PB McGraw Hill PP New York, NY SN 9781260474275 LK accesssurgery.mhmedical.com/content.aspx?aid=1194189371 RD 2024/04/23 AB 69-year-old man status post deceased donor kidney transplant for NSAIDs-related chronic tubulo-interstitial disease 10 months prior to current presentation. Azathioprine had to be discontinued due to pancytopenia. Corticosteroids were started. A biopsy was obtained to evaluate an elevated creatinine level.Biopsy reveals extensive inflammation with frequent tubulitis (Figures 112-70 and 112-71). Some tubular epithelial cells reveal enlarged nuclei with viral inclusions. SV40 polyomavirus stain is positive in nuclei of infected cells by immunoperoxidase technique (Figure 112-72).