Tag: pathognomonic sign
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Douglas Argyll Robertson and his pupils
JMS Pearce Hull, England Figure 1. Argyll Robertson pupil reactions. Diagram by Chainwit. on Wikimedia. CC BY-SA 4.0. In my student days, the Wasserman reaction (WR), though not specific, was performed almost routinely in patients on medical wards to detect syphilis. Several direct and serological tests of varying sensitivity and specificity have now replaced…