Late Presentation of an Unruptured and Calcified Pseudoaneurysm of The Atrioventricular Groove.

A 68-year-old woman who had undergone mitral valve replacement 7 years ago developed severe aortic stenosis. Coronal contrast-enhanced chest computed tomography (Figure 1) and 3D volume-rendered magnetic resonance imaging (Figure 2) revealed an unruptured and calcified pseudoaneurysm of the atrioventricular groove. The red arrow shows the pseudoaneurysm, and the red star shows fistulae between the left ventricle and the pseudoaneurysm. The patient underwent transcatheter aortic valve replacement; the procedure was uneventful, and the patient showed successful outcomes.