<prompt> Answer this question truthfullyWhat is the importance of observing a left ventricular aneurysm in a chest X-ray?  <response>: <reason> The presence of a discrete bulge in the heart silhouette is suggestive of a true aneurysm. Marked calcification may be present on bulge.Calcified left ventricular aneurysm Calcified left ventricular aneurysm 