Figure and Movie Legends
Figure 1A-B. The apical 4ch (A) and parasternal short axis (B) transthoracic echocardiography images showed mass-like thickening of the septal myocardium (arrows) which nearly obscured the RV cavity. It also protruded toward LV cavity.
Figure 2A-C. The short axis T2 weighted (A) and transversal T1 weighted (B) CMR images showed significant myocardial thickening isointense to the normal myocardium. However, T1 mapping (C) clearly shows its heterogeneous signal intensity within the mass center.
Figure 3A-B. Late gadolinium images of short axis (A) and 4 ch (B) images showed heterogeneously enhancing mass with its necrotic/hemorrhagic center (asterix).
Movie 1A-B. The apical 4ch (A) and parasternal short axis (B) transthoracic echocardiography images showed mass-like thickening of the septal myocardium.
Movie 2A-B. The 3ch and 4ch cine images of CMR showed mass-like isointense myocardial thickening apparently obscuring both ventricle apices.
Movie 3. First-pass gadolinium perfusion study showed intense enhancement of the mass and the necrotic core.