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beta 2 M-amyloidosis and gastrointestinal bleeding after renal transplantation

A Van Audenhove1, A Vandermarliere, E Lerut

  • 1Department of Nephrology, Europe Hospitals-2 Alice, Groeselenberg 57, B-1180 Brussels, Belgium. An.VanAudenhove@dialyse.be

Acta Clinica Belgica
|November 26, 2003
PubMed

Insights

Dialysis-related amyloidosis, caused by beta 2 microglobulin buildup after long-term hemodialysis, can lead to rectal bleeding post-transplant. Early detection of this complication is crucial for patients with a history of dialysis.

Area of Science:

  • Nephrology
  • Pathology

Background:

  • Dialysis-related amyloidosis (DRA) is a complication of long-term hemodialysis.
  • Amyloid deposits are primarily composed of beta 2 microglobulin (β2M).
  • DRA commonly affects the osteoarticular system but can involve extra-articular tissues.

Observation:

  • A patient with 27 years of hemodialysis developed rectal bleeding post-renal transplantation.
  • The bleeding was attributed to a rectal ulcer, potentially caused by rectal cannula use.
  • Histopathology confirmed amyloid deposition with positive Congo red staining and β2M presence in rectal blood vessels.

Findings:

  • This case highlights an unusual presentation of DRA involving the gastrointestinal tract.
  • Rectal bleeding in post-transplant patients with a history of long-term dialysis warrants investigation for DRA.

Implications:

  • Awareness of DRA complications is essential even after successful renal transplantation.
  • Early recognition and management of DRA-related issues can improve patient outcomes.
  • Further research into preventing and managing extra-articular DRA manifestations is needed.

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