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File:IPLab2MyocardialHypertophy1IPLab2Hypertrophy1.jpg|This is a gross photograph of a cross section of a normal human heart taken at autopsy (right) and the heart from this case, which demonstrates concentric hypertrophy of the left ventricular wall. Note the marked thickening of the left ventricular wall. There is also moderate thickening of the right ventricular wall.File:IPLab2MyocardialHypertophy2IPLab2Hypertrophy2.jpg|This low-power photomicrograph shows normal myocardium (left) compared to hypertrophied myocardium (right).File:IPLab2MyocardialHypertophy3IPLab2Hypertrophy3.jpg|Normal myocardium (left) is compared here to hypertrophied myocardium (right). The muscle fibers are thicker and the nuclei are larger and darker in the hypertrophied myocardium.The clear spaces between the muscle fibers are due to processing artifacts and are not present during life.File:IPLab2MyocardialHypertophy4IPLab2Hypertrophy4.jpg|Normal myocardium (left) is compared to hypertrophied myocardium (right). This high power view demonstrates the large dark nuclei (arrow) found in hypertrophied cardiac muscle cells. Polyploidy is a common feature in cardiac hypertrophy. Also note the increased size (thickness) of the individual cardiac muscle cell on the right compared to normal cardiac myocytes (left).File:IPLab2MyocardialHypertophy5IPLab2Hypertrophy5.jpg|This autopsy specimen was taken from another patient who had cardiac hypertrophy and congestive heart failure that resulted in dilation of the cardiac chambers. This heart was markedly enlarged (700 grams) but the congestive failure leads to dilation of the chambers and thinning of the wall. Note the marked dilation of both the left (1) and right (2) ventricular chambers.File:IPLab2MyocardialHypertophy6IPLab2Hypertrophy6.jpg|This gross photograph shows an example of normal physiologic hypertrophy. The organs shown are an open uterus (1), cervix (2) and vagina (3), both ovaries (4) and both kidneys (5) from a woman who died shortly after normal delivery from causes unrelated to childbirth. Note the marked thickening of the uterine wall due to smooth muscle cell hypertrophy.