A correct diagnosis is essential when a patient suffering from arthritis presents to a doctor. The most important tools are a thorough history and a physical exam. Diagnostic procedures such as magnetic resonance imaging and laboratory tests can also be useful. Another important element is the examination and diagnosis of joint fluid. This fluid, also known as synovial fluid (SF), plays an important role in normal joints. It is a viscous liquid that synovial cells, which are the cells that…