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Related Experiment Videos

Borderline changes in the Banff schema: rejection or no rejection?

L W Gaber1

  • 1Department of Pathology, University of Tennesee Health Science Center, Memphis, Tennesee, USA.

Transplantation Proceedings
|April 28, 2004
PubMed
Summary

Borderline changes on kidney transplant biopsies may indicate acute rejection in about one-third of patients. Careful correlation of pathology and clinical data is crucial for managing these renal allograft cases.

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Area of Science:

  • Nephrology
  • Transplant Immunology
  • Pathology

Background:

  • The Banff Schema classifies renal allograft biopsy findings, including "borderline changes," but their precise relationship with acute rejection is unclear.
  • Some studies suggest "borderline changes" may represent early acute rejection in a subset of kidney transplant recipients.
  • Mild tubulitis, a component of borderline changes, does not always respond to antirejection therapy, indicating other concurrent pathologies.

Purpose of the Study:

  • To clarify the significance of "borderline changes" in renal allograft biopsies.
  • To determine the association between "borderline changes" and acute rejection.
  • To identify concurrent histopathologic lesions in kidney allografts with "borderline changes."

Main Methods:

Related Experiment Videos

  • Histopathologic review of renal allograft biopsies classified as "borderline changes" according to the Banff Schema.
  • Correlation of biopsy findings with clinical evidence of graft dysfunction.
  • Analysis of concurrent lesions present in biopsy specimens.

    • Main Results:

    • Approximately one-third of patients with "borderline changes" and clinical signs of graft dysfunction showed evidence of acute rejection.
    • A significant proportion of "borderline changes" were associated with other histopathologic findings.
    • Common concurrent lesions included chronic allograft nephropathy, calcineurin inhibitor toxicity, acute tubular necrosis, and obstructive nephropathy.

    Conclusions:

    • "Borderline changes" in renal allograft biopsies can signify acute rejection, necessitating careful evaluation.
    • Management of kidney transplant recipients with "borderline changes" requires integrating histopathologic features with clinical presentation.
    • Concurrent pathologies frequently coexist with "borderline changes," influencing treatment decisions and patient outcomes.