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Atherosclerotic lesions. Natural history, risk factors, and topography.

This article describes the development of human atherosclerosis as a framework on which to integrate and incorporate the research on thrombosis and hemostasis of participants in the 1992 College of American Pathologists Conference XXII on Hemostasis and Atherosclerotic Disease. Included are the early classic studies of the morphological features of atherosclerosis, atherosclerosis in different populations, the distribution of atherosclerotic lesions among arterial segments, the topography of atherosclerotic lesions within arterial segments, and the relationship of risk factors for coronary heart disease to the arterial lesions of atherosclerosis. Special attention is given to the development of atherosclerosis in young people, including findings from the Pathobiological Determinants of Atherosclerosis in Youth study. The data in this review provide confirmation of the development of atherosclerosis at an early age and relate atherosclerotic lesions to certain coronary heart disease risk factors. Any role of thrombosis or hemostasis in atherosclerosis must be integrated into this framework.