A 47-year–old asymptomatic woman underwent routine follow-up of Takayasu aortitis with cardiovascular magnetic resonance. She had undergone aortic valve replacement 7 years before because of aortic root aneurysm. She was normotensive and on chronic therapy with steroids and tocilizumab. In addition, she had undergone yearly clinical follow-ups and a previous cardiovascular magnetic resonance 1 year before, showing mild dilation of the postprosthetic ascending aorta and aortic arch, as well as wall thickening and inflammation of the descending aorta (Figure 1). Her current cardiovascular magnetic resonance scan disclosed a large pseudoaneurysm of the descending aorta, with …