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Early large vessel systemic vasculitis in adults.

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Giant cell arteritis (GCA), a common vasculitis in older adults, frequently involves large vessels (LVV). Differentiating LVV from cranial GCA is crucial for timely diagnosis and managing vascular complications.

Keywords:
CT-angiographyDiagnosisGiant cell arteritisLarge vessel vasculitisMR-angiographyPET/CTPolymyalgia rheumaticaTemporal artery biopsyTemporal artery ultrasound

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Area of Science:

  • Rheumatology
  • Vascular Medicine
  • Immunology

Background:

  • Giant cell arteritis (GCA) is the most prevalent vasculitis affecting individuals over 50 in Western nations.
  • Large vessel vasculitis (LVV) is an increasingly recognized manifestation of GCA, distinct from cranial GCA.
  • Patients with LVV-predominant GCA often present with constitutional symptoms or polymyalgia rheumatica (PMR) and may lack cranial symptoms.

Purpose of the Study:

  • To highlight the differences between cranial GCA and LVV-predominant GCA.
  • To emphasize the importance of monitoring patients with isolated PMR for underlying GCA.
  • To review diagnostic modalities for cranial GCA and LVV in GCA.

Main Methods:

  • Review of clinical presentations and diagnostic approaches for GCA.
  • Comparison of patient demographics and manifestations in cranial GCA versus LVV-predominant GCA.
  • Discussion of imaging techniques for diagnosing LVV in GCA.

Main Results:

  • LVV-predominant GCA typically affects younger patients and presents with nonspecific symptoms.
  • Cranial manifestations are often absent in patients with LVV-predominant GCA.
  • Isolated PMR carries a risk of underlying GCA and potential vascular complications.

Conclusions:

  • Distinguishing between cranial GCA and LVV-predominant GCA is essential for appropriate management.
  • Vigilant follow-up of patients with PMR is necessary due to the risk of GCA.
  • Advanced imaging techniques are vital for diagnosing LVV in GCA and guiding patient follow-up.