Aortitis in GCA on MR angiography

(A) Parasagittal MR angiography image of the aorta demonstrates diffuse thickening and peripheral enhancement of the aortic wall along the aortic arch, the descending aorta, and the proximal abdominal aorta in a patient with biopsy-proven GCA.
(B) High-resolution, axial-delayed MR angiography image of the aorta shows thickening and enhancement of the aortic wall.