Only right knee pain which comes and goes.
Suddenly the pain worsened. The MRI showed: minimal to gross joint effusion. Grade 2 injury of patellar tendon. Enhancement of hoffas fat pad.
Blood test:
crp and esr were high.
Uric acid, rf factor, cbc were normal. Aso was normal No recent injuries too. Last knee injury was 5 year back due to a fall upon mri that showed minimal joint effusion. Other things were normal. What is the exact cause? Is it a type of chronic inflammatory arthritis or any other like an autoimmune disease?