JAMA. 1904;XLIII(19):1372-1376. doi:10.1001/jama.1904.92500190001d.
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My interest in aneurism of the innominate artery was stimulated by a case which came under my observation in the medical dispensary of the University Hospital in December, 1901. After studying the symptoms and physical signs of this case for several months, I presented the patient before the medical society of the University of Pennsylvania, and my diagnosis was very generally concurred in

It must be admitted, however, that "experience is fallacious and judgment difficult." and that in the last analysis we must go to the postmortem room for confirmation of such diagnoses. I, therefore, proceeded with the study of my subject there, and was able to collect eight cases.1 In but one instance in this series, and in that case only tentatively, had the correct diagnosis been made, and the question naturally presented itself as to whether there existed in these cases such clinical obscurity as to warrant this apparent difficulty in diagnosis.


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