Combination of aneurysm and myocardial bridging at the same site of a coronary artery in a patient with obstructive hypertrophic cardiomyopathy.

This case report describes the rare finding of myocardial bridging and a coronary aneurysm in the same coronary artery segment of a 57-year-old patient with obstructive hypertrophic cardiomyopathy. At the site of the aneurysm in the proximal LAD, the myocardial bridging resulted in an almost normal vessel diameter during systole with an aneurysmatic expansion of the vessel during diastole. This accidental finding does not necessarily require special therapy, since the underlying coronary aneurysm is small, with a low risk of thrombus formation or rupture, but it is big enough to prevent a coronary obstruction due to the myocardial bridging.