Snapshot A 7-year-old boy presents with 1 week of subjective low grade fevers and sudden onset right hip pain. His parents noticed a new limp in the past few days. They also report that the patient had a recent upper respiratory infection about 2 weeks ago. Physical exam reveals a crying but otherwise well-appearing child. He has a temperature of 100.0°F (37.8°C). There is limited range of motion of the right hip. Introduction Clinical definition login to view 1 more bullet Epidemiology Demographics login to view 4 more bullets Risk factors login to view 1 more bullet Etiology Pathogenesis login to view 1 more bullet Presentation Symptoms login to view 2 more bullets Physical exam login to view 4 more bullets Imaging Radiography login to view 7 more bullets Studies Making the diagnosis login to view 1 more bullet Differential Septic arthritis login to view 3 more bullets Legg-Calve-Perthes disease login to view 3 more bullets Treatment Conservative login to view 3 more bullets Medical login to view 3 more bullets Complications None Prognosis Typically resolves within 1 week