IgG4-related cardiovascular disease: imaging features on cardiac computed tomography and magnetic resonance imaging

S H Chandrashekhara1, Vineeta Ojha1, Pramod Kumar1

  • 1Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, Room no 10A, New Delhi, 110029 India.

Insights

Immunoglobulin G4 (IgG4) vasculitis can affect the entire cardiovascular system. Computed tomography (CT) angiography is crucial for diagnosing this condition.

Area of Science:

  • Cardiovascular Medicine
  • Rheumatology
  • Immunology

Background:

  • Immunoglobulin G4-related disease (IgG4-RD) is a fibroinflammatory condition that can affect various organs.
  • Cardiovascular involvement in IgG4-RD is increasingly recognized but often presents insidiously.
  • Vasculitis is a rare but serious manifestation of IgG4-RD.

Purpose of the Study:

  • To report a case of extensive cardiovascular involvement in a patient diagnosed with IgG4 vasculitis.
  • To emphasize the diagnostic utility of computed tomography (CT) angiography in identifying IgG4 vasculitis affecting cardiovascular structures.

Main Methods:

  • Case report presentation.
  • Detailed clinical, laboratory, and imaging findings.
  • Review of relevant literature.

Main Results:

  • The patient presented with diffuse involvement of multiple cardiovascular structures, including the aorta, coronary arteries, and cardiac chambers.
  • Computed tomography (CT) angiography revealed characteristic findings consistent with IgG4 vasculitis, aiding in diagnosis.
  • Histopathological examination confirmed the diagnosis and demonstrated IgG4-positive plasma cell infiltration.

Conclusions:

  • IgG4 vasculitis can lead to widespread cardiovascular compromise.
  • CT angiography is an invaluable tool for the early and accurate diagnosis of IgG4 vasculitis affecting the cardiovascular system.
  • Prompt diagnosis and treatment are essential to prevent severe cardiovascular complications.

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