Figure. 3 CT scan shows a cystic hypodense shadow with well-defined borders on the left edge of the pericardium, with a CT value of approximately 22 HU (a); arterial phase shows no significant enhancement of the lesion (b); venous phase shows thickening of the left ventricular myocardium compared to the right ventricular myocardium (c); venous phase coronal image shows left ventricular compression with lesion wrapping around the heart (d).