CTICasesGiant Cell Arteritis
[...]. Giant Cell Arteritis. CTICases. Published June 30, 2017. https://cticases.com/c/mpakb
Imaging findings
Chest CT angiogram shows mild, circumferential wall thickening of the descending and ascending thoracic aorta, extending into the great vessels and abdominal aorta. Positron emission tomography/computed tomography (PET/CT) demonstrates dramatic, intense, diffuse, circumferential FDG uptake throughout the entire course of the thoracic and abdominal aorta, as well as the proximal subclavian arteries.
Key takeaways
Giant cell arteritis is a large-vessel vasculitis that can show subtle, difficult-to-perceive wall thickening on CT but exhibits highly prominent and intense circumferential FDG uptake on PET/CT. PET/CT is a valuable non-invasive tool for determining the full extent of large-vessel involvement.
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