Misconceptions about psoriatic arthritis can make it difficult to diagnose and explain to others.

Rheumatoid arthritis, which occurs when your immune system attacks your body’s tissues, can have a variety of symptoms. They may occur suddenly in flares, and they also may disappear when the ...

The case description for Case 10-2013 appears below. What diagnostic tests will prove useful? What is the diagnosis? The correct diagnosis, along with the full description of the case and the ...