The New York Times has a regular feature called “Think Like a Doctor.” It shares symptoms for a challenging case and then solicits readers to post a diagnosis. On 10/3, it featured a Primary Amyloidosis patient. It says that 3/4ths of the respondents got it right. That’s encouraging.
http://well.blogs.nytimes.com/2013/10/04/think-like-a-doctor-a-green-heart-solved/?_r=0