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  • Title: Granulomatous tubulointerstitial nephritis in the renal allograft.
    Author: Meehan SM, Josephson MA, Haas M.
    Journal: Am J Kidney Dis; 2000 Oct; 36(4):E27. PubMed ID: 11007702.
    Abstract:
    Granulomatous tubulointerstitial nephritis has rarely been described in renal allografts. Of 1,574 renal allograft tissue specimens obtained from 514 patients in the period 1993 to 1998, we report three cases (0.6%) with interstitial nephritis containing multiple noncaseating granulomas. Biopsy specimen 1 was obtained from a 44-year-old woman with a 6-day history of systemic Candida albicans infection and showed multiple granulomas containing budding yeasts. Biopsy specimen 2 was from a 33-year-old man who presented with miliary spread of Mycobacterium tuberculosis 12 days before the allograft biopsy. Biopsy specimen 3 was from a 23-year-old woman who presented with Escherichia coli urinary infection and bacteremia that was treated with antibiotics for 10 days before the biopsy. Granulomatous inflammation in reponse to infectious agents or drugs in immunosuppressed kidney transplant recipients can rarely give rise to allograft interstitial nephritis that is distinct from acute rejection. To our knowledge, there are no prior reports of granulomatous tubulointerstitial nephritis associated with C albicans and E coli infection or antibiotic therapy in human renal allografts.
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