- Etiology: large vessel vasculitis, chronic idiopathic granulomatous inflammation of large arteries
- Imaging: affects thoracic + abdominal aorta simultaneously along with renal arteries / pulmonary artery / coronary arteries, see thickened enhancing wall of aorta + its branches with luminal narrowing, +/- thrombus, diffuse or focal aneurysms
- CT: calcification
- MRI: increased T2 signal is sign of active inflammation
- Complications: vascular stenosis / occlusion / aneurysm (less common)
- Clinical: presents in adolescence, has 3 phases – early prepulseless phase, vascular inflammatory phase, late occlusive phase
Radiology Cases of Takayasu Arteritis
