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JAMA. 1927;88(6):416-417. doi:10.1001/jama.1927.02680320052021.
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The Importance of Serum and Spinal Fluid Tests in Neurologic Diagnosis  At a recent meeting of the Budapest Royal Medical Society, Arthur Sarbo, professor of psychiatry at the University of Budapest, read a report on more than 700 cases, comprising three years' work, in which serum and spinal fluid tests had been made. In forty cases, he compared the results of the tests with the disclosures at autopsy. He found that the Wassermann reaction on the spinal fluid is usually dependable. Of other diseases, only tuberculous meningitis may yield a positive Wassermann reaction. In case this occurs, the high albumin content and the pleocytosis in tuberculosis may be utilized for differential diagnosis. Also, a positive hemolysis reaction is almost a sure indication that the meninges have become more permeable. Further data are obtained from the colloid reaction, which, when strongly positive, is indicative of parenchymatous processes. This explains the almost


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