Figure 8.

Full‐thickness section of the anterior right ventricular (RV) wall and interventricular septum (IVS) including epicardial fat (EF) using conventional hematoxylin and eosin (H&E) (left) and collagen stains (Sirius red) (right) at ×0.42 magnification. There is patchy fibro‐fatty replacement of the muscular wall affecting the anterior right ventricular wall and the right interventricular septum. The myocardial architecture of the left IVS is unaffected. Asterisk: coronary artery. The single‐headed arrow points toward endocardium. The double‐headed arrow marks the areas affected by fibro‐fatty replacement