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An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
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Isolated aortitis versus giant cell arteritis: are they really two sides of the same coin?

Rosaria Talarico1, Luigi Boiardi, Nicolo' Pipitone

  • 1Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Italy. sara.talarico76@gmail.com.

Clinical and Experimental Rheumatology
|May 24, 2014
PubMed

Insights

Patients with isolated aortitis show distinct epidemiological and clinical profiles compared to giant cell arteritis (GCA). This suggests isolated aortitis may not be a variant of GCA, highlighting differences in patient demographics and disease presentation.

Area of Science:

  • Vascular Inflammation
  • Rheumatology
  • Diagnostic Imaging

Background:

  • Giant cell arteritis (GCA) is a common large vessel vasculitis.
  • Distinguishing isolated aortitis from GCA is crucial for accurate diagnosis and management.
  • FDG PET imaging aids in detecting active inflammation in the aorta.

Purpose of the Study:

  • To compare epidemiological and clinical data of patients with isolated aortitis versus GCA.
  • To determine if isolated aortitis represents a distinct clinical entity from GCA.

Main Methods:

  • Retrospective review of patients with suspected GCA over two decades.
  • Inclusion of cases with abnormal [18F] fluorodeoxyglucose (FDG) PET uptake in the aorta.
  • Definition of 'isolated aortitis' as aortic FDG uptake without atherosclerosis or involvement of other large vessels.

Main Results:

  • Isolated aortitis predominantly affects males, unlike GCA.
  • Patients with isolated aortitis are significantly younger (mean age 62) than GCA patients (mean age 78.4).
  • Isolated aortitis patients lack typical GCA symptoms; constitutional symptoms may be present. Thoracic and abdominal aorta are commonly involved without aortic branch uptake.

Conclusions:

  • Patients with isolated aortitis exhibit a different epidemiological and clinical profile compared to GCA.
  • Isolated aortitis and GCA do not appear to be interchangeable conditions.
  • Further research is needed to understand the evolution and classification of isolated aortitis.
Abstract

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