What is the abnormality on CT?
Posteroinferior left ventricular true aneurysm with basal thrombus.
What is the difference between a true ventricular aneurysm and a ventricular pseudoaneurysm?
True aneurysms are contained within the ventricle myocardium. They usually form in a weakened area of heart muscle, most commonly after myocardial infarction. There is associated ventricular wall thinning in the aneurysmal sac. Pseudoaneurysms are formed when the ventricle ruptures, leaking blood into the pericardial space. Hence they are contained within pericardium, not within the ventricle itself. A haematoma forms, contained within the pericardial sac.
There is a large posteroinferior left ventricular true aneurysm with significant basal thrombus and ventricular wall thinning. Multi level degenerative changes of the thoracic spine.