Acute myocardial infarction in a young patient with myocardial bridge and elevated levels of free triiodothyronine.

Revelation of a myocardial bridge has been described at coronary angiography. The pathophysiology of myocardial bridging is incompletely understood. It is sometimes associated with overt pathology, as well as it can just be an incidental finding without any significance. It has been also reported an acute myocardial infarction with normal coronary arteries associated with iatrogenic hyperthyroidism. We present a case of acute myocardial infarction in a 28-year-old Italian man with normal coronary arteries, iatrogenic elevated levels of free triiodothyronine and myocardial bridge.