
A 56-year-old woman complainsof right hip pain that has been presentfor several weeks but has recentlyworsened. She denies recent trauma,fever, and increased physicalactivity. She has no history of arthritis,but she does have systemiclupus erythematosus, which a dailyregimen of prednisone, 20 mg PO,has kept in remission. Her medicalhistory is otherwise unremarkable.












































































































































































































































































