“ This is a large-vessel arteritis tending to affect young women. There is granulomatous inflammation of the vessel wall, with vessels ulti...
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This is a large-vessel arteritis tending to affect young women.
There is granulomatous inflammation of the vessel wall, with vessels ultimately becoming stenotic, occluded or aneurysmal.
CT
• Vessel wall thickening and enhancement.
• Aorta (thoracic particularly) and its branches are mostly affected.
• Pulmonary arteries affected in 50%, peripheral pulmonary arteries may be ‘pruned’, trunk dilated.
• Vessels calcify in chronic disease (otherwise they are more likely to become aneurysmal).
MRI
• Look for high signal on the short tau inversion recovery (STIR) in the vessel wall, indicating oedema.
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