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An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
Published on: February 8, 2019
Large-vessel involvement in giant cell arteritis
Tim Bongartz1, Eric L Matteson
1Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA.
Insights
Giant cell arteritis frequently affects large vessels, potentially causing serious complications like aortic aneurysm. Early diagnosis and treatment are crucial for managing this condition and improving patient outcomes.
Area of Science:
- Rheumatology
- Vascular Medicine
- Immunology
Background:
- Giant cell arteritis (GCA) affects over 25% of patients, involving large vessels such as the aorta and its branches.
- Complications include stenosis leading to claudication and gangrene, and aortitis causing aneurysms and dissections, often diagnosed years later.
Purpose of the Study:
- To review the current understanding of large-vessel involvement in GCA.
- To outline diagnostic approaches and management strategies for GCA with large-vessel disease.
Main Methods:
- Review of recent literature on GCA and large-vessel involvement.
- Discussion of diagnostic imaging techniques (angiography).
- Consideration of proteomic and genomic approaches for pathogenesis and disease assessment.
Main Results:
- Pathobiology variations likely contribute to GCA subsets.
- Angiographic imaging is critical for diagnosis.
- Aneurysm formation significantly reduces life expectancy in some GCA patients.
- Glucocorticosteroids remain the primary treatment.
Conclusions:
- Advances in diagnostics, including proteomic and genomic methods, will enhance understanding of GCA pathogenesis, activity, and extent.
- A proposed algorithm aids in evaluating GCA patients with large-vessel disease.
Purpose Of Review:
Large-vessel involvement in giant cell arteritis occurs in over a quarter of patients with this disease. Stenosis of the primary and secondary branches of the aorta may cause claudication and tissue gangrene, whereas aortitis may lead to aneurysm formation and dissection, often many years after the initial diagnosis.
Recent Findings:
Subsets of giant cell arteritis are probably caused by variations in the pathobiology of the disease. Radiographic imaging with some form of angiography is essential to reach a proper diagnosis. Although survival in giant cell arteritis is generally good, subsets of patients with aneurysm formation have a markedly diminished life expectancy. Glucocorticosteroids continue to be the mainstay of treatment for giant cell arteritis and its complications.
Summary:
Advances in diagnostic techniques including proteomic and genomic approaches should improve our understanding of the pathogenesis as well as the assessment of disease activity and extent. We provide a suggested algorithm for the evaluation of patients with large-vessel disease in giant cell arteritis.
