Figure 22.

Calcified amorphous tumor 3 different examples of imaging modalities. (a) Upper panel shows a normal mitral annulus and lower panel shows a calcified amorphous tumor (CAT) with the caseous liquefaction material just under the valve leaflets (arrow). (b) TTE upper panel shows CAT (arrow), lower panel showing increased gradient across the mitral inflow mean gradient of nearly 4 mmHg. (c) Upper panel shows the CAT on a cardiac CT scan without IV contrast and lower panel shows the CAT with IV contrast. (d) CAT as visualized on a chest x-ray upper panel frontal view, lower panel lateral view with arrows pointing out the calcium in the MV annulus.

Abbreviations: CT, computed tomography; IV, intravenous; MV, mitral valve; TTE, transthoracic echocardiography.