A case of post infarction true left ventricular aneurysm which showed pseudoaneurysm-like shape in left ventriculography

A 69-year-old man who had a post-infarction left ventricular aneurysm underwent surgical repair. Preoperative left ventriculography showed a small aneurysm, 3.0 x 3.0 x 2.5 cm in size, with a narrow neck at the inferior wall suggesting a typical "false" aneurysm. But intraoperative and pathological examination revealed that this was a "true" aneurysm which contains coronary artery and myocardial cells in its wall. Left ventriculography is not necessarily the definite standard to differentiate between true and false left ventricular aneurysm.