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Polyomavirus-induced interstitial nephritis in two renal transplant recipients: case reports and review of the literature.

Abstract
We present two case reports of renal polyomavirus infection leading to renal allograft dysfunction, review the literature of this entity, and discuss the role of specific immunosupressives. Histologically, the virus caused an interstitial infiltrate composed of plasma cells and lymphocytes, interstitial fibrosis, and tubular atrophy. Viral inclusions were seen within tubular cells on light microscopy. Electron microscopy showed viral particles of 40 to 50 nm in a characteristic paracrystalline array. Both patients had been on FK-506-based immunosuppression. In both patients, the virus appeared to clear histologically and renal function stabilized when the patients were converted to cyclosporine-based immunosuppression. Contrary to prior reports, our patients have not lost their grafts and continue to have stable, albeit reduced, graft function at 2.5 years and 4.5 years following the initial diagnosis of renal polyomavirus infection.
AuthorsV S Mathur, J L Olson, T M Darragh, T S Yen
JournalAmerican journal of kidney diseases : the official journal of the National Kidney Foundation (Am J Kidney Dis) Vol. 29 Issue 5 Pg. 754-8 (May 1997) ISSN: 0272-6386 [Print] United States
PMID9159311 (Publication Type: Case Reports, Journal Article, Review)
Topics
  • Acute Disease
  • Adult
  • Biopsy
  • Cadaver
  • Female
  • Humans
  • Kidney (ultrastructure, virology)
  • Kidney Transplantation (pathology)
  • Male
  • Nephritis, Interstitial (etiology, pathology, virology)
  • Polyomavirus
  • Polyomavirus Infections (complications, pathology, virology)
  • Postoperative Complications (etiology, pathology, virology)
  • Tumor Virus Infections (complications, pathology, virology)

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