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Differentiating Functional Roles of Gene Expression from Immune and Non-immune Cells in Mouse Colitis by Bone Marrow Transplantation
14:43

Differentiating Functional Roles of Gene Expression from Immune and Non-immune Cells in Mouse Colitis by Bone Marrow Transplantation

Published on: October 1, 2012

Ischemic colitis as a manifestation of thrombotic microangiopathy following bone marrow transplantation

Yukiko Komeno1, Seishi Ogawa, Tateru Ishida

  • 1Department of Cell Therapy & Transplantation Medicine, University of Tokyo Hospital, Tokyo.

Internal Medicine (Tokyo, Japan)
|January 13, 2004
PubMed

Insights

Thrombotic microangiopathy (TMA) after bone marrow transplantation (BMT) can cause ischemic colitis, mimicking graft-versus-host disease. This case highlights TMA

Area of Science:

  • Hematology
  • Transplantation Medicine
  • Gastroenterology

Background:

  • Thrombotic microangiopathy (TMA) is a serious vascular complication.
  • Differentiating TMA-induced ischemic colitis from graft-versus-host disease post-bone marrow transplantation (BMT) is clinically challenging.
  • Myelodysplastic syndrome is a common indication for BMT.

Observation:

  • A 32-year-old male developed ischemic colitis following unrelated BMT for myelodysplastic syndrome.
  • The patient experienced severe, treatment-resistant bloody diarrhea.
  • Post-BMT complications included renal failure and Aspergillus pleuritis, leading to death.

Findings:

  • Autopsy confirmed endothelial injury in arterioles and ischemic changes in the intestines and kidneys.
  • The clinical presentation and pathological findings were consistent with BMT-associated TMA.
  • This case underscores the diagnostic difficulty in distinguishing TMA from acute graft-versus-host disease.

Implications:

  • Recognizing TMA as a cause of ischemic colitis post-BMT is crucial for timely diagnosis and management.
  • Understanding the pathological features of BMT-associated TMA can improve patient outcomes.
  • Further research into differentiating TMA from graft-versus-host disease is warranted.

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