A man went to the emergency room after being in and out of hospitals for a month, and doctors found a surprising explanation for his illness.
Source: [Live Science](https://www.livescience.com/health/viruses-infections-disease/diagnostic-dilemma-an-83-year-old-man-went-to-the-hospital-because-of-very-itchy-skin-it-turned-out-he-had-a-rare-form-of-syphilis)