Complex regional pain syndrome (reflex sympathetic dystrophy).

CLINICAl history :Severe restriction of movements following trauma and immobilization since 1 month.

Mild elbow joint effusion with mild diffuse synovial thickening with subtle patchy subchondral and subcortical reactive bone marrow edema of the articular margins of the humerus, radial head and ulna – suggestive of Complex regional pain syndrome (reflex sympathetic dystrophy).

 Differential considerations also include:- inflammatory synovitis 

 No evidence of bony erosions. No evidence of scalloping.

 A few enlarged periarticular lymphnodes