<num>. striking cardiomegaly; true cardiac enlargement or the possibility of a pericardial effusion, or perhaps both, could be considered. <num>. prominent main pulmonary artery contour. <num>. findings suggesting mild vascular congestion. <num>. status post endotracheal intubation, with relatively high lying endotracheal tube, which could be advanced by approximately <num> cm for more optimal positioning, if clinically indicated.