AVASCULAR NECROSIS OF TALUS

Slight reduction in the height of talus with diffuse altered bone marrow signal intensity involving the talar dome, replacing the normal T1 fatty bone marrow signals, extending to the talar neck and anterior process demonstrating double line sign at the anterior talar process – suggestive of avascular necrosis of talus

Marked ankle joint effusion with evidence of mild diffuse synovial thickening and small extraarticular synovial outpouchings – suggesting secondary synovitis