Fig. 2.

Electrocardiography (ECG) gated computed tomography (CT) after admission and CT without ECG gating one month and seven months before the operation. ECG gated CT with a slice thickness of 0.5 mm revealed a pedunculated mass attached to the anterior papillary muscle of the left ventricle in a short axial image (A) and four-chamber view (B). The papillary fibroelastoma was detected as a mass in the left ventricle lumen on CT without ECG gating with a slice thickness of 5 mm, which was performed almost one month before the operation (C); however, it was not detected in contrast CT without ECG gating with a slice thickness of 1 mm performed under the same protocol seven months before the operation (D).