{| cellpadding="10"<gallery>| [[ImageFile:IPLab1MyocardialInfarction1.jpg|frameless]]| In this gross photograph of the heart from this case, note the area of fresh myocardial infarction (arrows) in the anterior portion of the left ventricle and extending into the anterior portion of the interventricular septum. Note that the walls of the left and right ventricle are slightly thicker than normal.|-| [[ImageFile:IPLab1MyocardialInfarction2.jpg|frameless]]| This is a low-power photomicrograph of the left ventricular free wall extending from the epicardium (1) to the endocardium (2). The area of infarction is the darker red (hypereosinophilic area) along the subendocardium (3).|-| [[ImageFile:IPLab1MyocardialInfarction3.jpg|frameless]]| This higher-power photomicrograph shows endocardium on the right side of this image. Directly beneath the endocardium is a pale area consisting of cardiac myocytes exhibiting vacuolar degeneration (1). The area of infarction is visible as a hypereosinophilic area (2) and there is a second zone of vacuolated myocytes (3) between the infarct and the normal myocardium (4).|-| [[ImageFile:IPLab1MyocardialInfarction4.jpg|frameless]]| This high-power photomicrograph shows the area of infarction on the right (1). There is an area of vacuolated myocytes (2) adjacent to the infarcted myocytes and then normal cardiac muscle to the left (3).|-| [[ImageFile:IPLab1MyocardialInfarction5.jpg|frameless]]| This high-power photomicrograph shows the endocardium (1) and the area of subendocardial vacuolar degeneration (2). The area of infarction (3) contains some red blood cells.|-| [[ImageFile:IPLab1MyocardialInfarction6.jpg|frameless]]| This high-power photomicrograph demonstrates the border between the vacuolated subendocardial myocytes (1) and the infarcted myocytes (2).|-| [[ImageFile:IPLab1MyocardialInfarction7.jpg|frameless]]| This high-power photomicrograph contains normal myocytes (1), vacuolated myocytes (2), and infarcted myocytes (3).|}</gallery>