<unk> <unk> s are radiolucencies surrounded by a sclerotic margin that are typically located in the anterior proximal superior quadrant of the<unk> <unk>  and occur in some 33% of patients. They range in size from 3 to 15 mm (mean, 5 mm). Hips with femoroacetabular impingement have a significantly higher prevalence of<unk> <unk> s.
Herniation pit of the femoral neck
Accessory navicular bone
Acromioclavicular separation
Fracture nonunion
Retrocalcaneal bursitis
Bipartite patella
Bone spur
Dislocated patella x ray