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Amyloid Arthropathy: A Review.

Julio A Diaz-Perez1, Sheila A Conway2, Yiqin Zuo1

  • 1Departments of Pathology and Laboratory Medicine.

Advances in Anatomic Pathology
|September 13, 2021
PubMed
Summary

Amyloid arthropathy, a joint disease linked to systemic amyloidosis, arises from amyloid protein buildup in joints. This review details its causes, symptoms, and diagnostic methods for better patient outcomes.

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Area of Science:

  • Rheumatology
  • Nephrology
  • Pathology

Background:

  • Amyloid arthropathy is a joint complication of systemic amyloidosis.
  • It involves the deposition of amyloid proteins in synovial fluid and articular tissues.
  • Common causes include beta-2-microglobulin (associated with hemodialysis) and immunoglobulin light chains (linked to plasma cell disorders).

Purpose of the Study:

  • To present a model case of amyloid arthropathy.
  • To review the clinicopathologic features and pathophysiology of this joint disorder.
  • To provide a comprehensive update on pathogenesis, clinical manifestations, and diagnostic approaches.

Main Methods:

  • Literature review of clinicopathologic features and pathophysiology.
  • Analysis of a model case illustrating the disorder.
  • Synthesis of current knowledge on amyloid protein deposition and aggregation in joints.

Main Results:

  • Amyloid arthropathy stems from elevated serum amyloidogenic proteins.
  • Deposition occurs in synovial fluid and articular tissues, causing joint disease.
  • Key proteins involved are beta-2-microglobulin and immunoglobulin light chains.

Conclusions:

  • Understanding amyloid protein deposition is crucial for diagnosing amyloid arthropathy.
  • This review offers insights into the pathogenesis and clinical presentation.
  • Effective diagnosis relies on recognizing the association with systemic amyloidosis and specific protein types.