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There is a form of cardiac lesion, not infrequent in occurrence, which has a clinical picture so characteristic that it deserves more frequent recognition than it commonly receives. Its age and sex incidence, the character of the pathologic lesion, indicative of a slow development over a period of many years, and the probable long presence of physical signs with slight symptoms distinguish it from other commonly observed cardiac lesions and give rise to interesting speculations as to its etiology and why it differs in so many respects from other more frequently encountered forms of heart disease. Though it has been recognized for many years and is described in the majority of books on heart disease, it has not been discussed often in recent literature,1and it seems still to be considered relatively infrequently as a possibility in diagnosis; typical examples often fail of diagnosis. I refer to aortic stenosis
Henry A. Christian (Sat,) studied this question.