Inflammation of large arteries such as the aorta and its majorbranches occurs in a number of disorders, including Kawasaki'ssyndrome, Behçet's syndrome, rheumatoid arthritis, syphilis,and tuberculosis. However, aortitis and large-vessel arteritisare characteristics of two entities giant-cell (temporal)arteritis and Takayasu's arteritis. These arteritides involvesimilar histologic abnormalities1 but differ in the age of onsetand the vascular structures that are preferentially targeted.2,3They share pathogenic pathways that distinguish them from othervasculitides. Cellular immune responses involving T cells, antigen-presentingcells, and macrophages are fundamental elements in giant-cellarteritis and Takayasu's arteritis, and there is no evidence. . . [Full Text of this Article]
The Pathogenic Model of Giant-Cell Arteritis
T-CellDependent Vasculitic Inflammation in Giant-Cell Arteritis
Vessel-Wall Inflammation
Granuloma Formation in Giant-Cell Arteritis
Mechanisms of Tissue Damage in Giant-Cell Arteritis
Response of Arteries to Immune-Mediated Injury
Heterogeneity of Clinical Disease and Its Pathogenic Correlates
Therapeutic Implications
Optimizing Corticosteroid Treatment
Combination Therapy
Aspirin
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From the Departments of Medicine and Immunology, Mayo Clinic, Rochester, Minn.
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