30-year-old male with history of lymphoma and known AVN with increasing hip pain Right hip: There is serpentine, bandlike signal abnormality within the femoral head indicating osteonecrosis involving the entire weightbearing surface of the femoral head. Osteonecrosis appears to have progressed slightly with new cysts in the femoral head. Edema within the femoral head and neck is also slightly more pronounced than the prior exam. Curvilinear subchondral T2 hyperintensity on fat suppressed images likely represents a subchondral fracture, however we see no frank surface collapse at this time. Mild right hip synovitis as well as a small joint effusion appears similar to the prior exam. The musculature of the right hip appears normal.Left hip: There is serpentine, bandlike signal abnormality within the femoral head indicating osteonecrosis involving the entire weightbearing surface of the femoral head. Edema within the femoral head and neck appears similar to the prior exam. Curvilinear subchondral increased T2 signal likely represents a subchondral fracture, however we see no frank articular surface collapse. Mild synovitis and a small joint effusion is unchanged. The musculature of the left hip appears normal.
Findings indicating slight progression of bilateral femoral head AVN and other findings as described above.