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4526 Pathology

A 56-year-old man experienced episodes of severe substernal chest pain every time he performs a task that requires moderate exercise. The episodes have become more frequent and severe over the past year, but they can be relieved by sublingual nitroglycerin. On physical examination, he is afebrile, his pulse is 78/min and regular, and there are no murmurs or gallops. Laboratory studies show creatinine, 1.1 mg/dL; glucose, 130 mg/dL; and total serum cholesterol, 223 mg/ dL. Which of the following cardiac lesions is most likely to be present in this man?

ACalcific aortic stenosis
BCoronary atherosclerosis
CRestrictive cardiomyopathy
DRheumatic mitral stenosis
Pathology
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