Fig. 3From: A rare case of avascular necrosis in sickle cell trait: a case reportThis coronal T1-weighted image shows progression of AVN with necrosis, flattening of the right femoral head, and post decompression evidence in the femoral neck. There is also edema, which corresponds to the increasing pain the patient was experiencing at this time. There are obvious differences between the left and right femoral headsBack to article page