Echocardiographic image of feline, mixed-breed, 4 years old, affected by peritoneopericardial diaphragmatic hernia (left caudal parasternal window in longitudinal section of the ventricle and left atrium in the region of the left ventricular outflow tract). Notice the liver (FIG) in proximity to the left ventricle (VE) and left atrium (AE). On the arrow, evidence of the pericardial sac. Cat para Gatos RJ (05/2020).