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JAMA. 1885;V(7):185-186. doi:10.1001/jama.1885.02391060017006.
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In another department of the Journal of this week we give an account of the chemical examination of the blood of two patients affected with malignant tumors, which were operated upon by Prof. Edmund Andrews. The examination was made in order to test the assertions of Ernst Freund, of Vienna, who has been led, by investigation into the chemical nature of malignant tumors, to believe that they can be diagnosticated by the presence of certain substances in the blood. He found that in patients affected with carcinoma the blood contained a considerable quantity of sugar, and that in sarcomatous patients the blood contained no sugar, but peptone, which, on the other hand, is not present in the carcinomatous. The great clinical importance of any such test, if it can be shown to be trustworthy, is evident at a glance. In many cases one of the most puzzling problems that


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