Which statement about aneurysms of the left ventricle is incorrect as identified by 2D echo?

The statement regarding the size of an aneurysm decreasing in systole is incorrect because, during systole, the left ventricle contracts, and an aneurysm typically does not decrease in size. Instead, an aneurysm may appear to enlarge or remain the same size as the wall fails to contract adequately due to the thinning and potential elasticity loss of the aneurysmal tissue. This characteristic is part of why aneurysms can lead to complications such as heart failure or thrombus formation.

In contrast, the other statements regarding left ventricular aneurysms are accurate. The walls of an aneurysm are indeed thin, which can lead to increased risk for rupture or other complications. In many cases, the apex of the left ventricle is involved due to its location, as this region is most susceptible to ischemic damage. Additionally, multiple views in echocardiographic assessment are essential to fully characterize the aneurysm's size and morphology, as this provides a comprehensive understanding of its impact on left ventricular function.