Persistent Fever and Ankle Pain in a Child Kathryn H. Pade, MD, Jessica H. Rankin, MD, Marsha A. Elkhunovich, MD  Annals of Emergency Medicine  Volume 67, Issue 6, (June 2016) DOI: 10.1016/j.annemergmed.2015.11.024 Copyright © 2016 American College of Emergency Physicians Terms and Conditions

Figure 1 Radiograph of the right ankle showing soft tissue swelling (arrow) without cortical bone changes. Annals of Emergency Medicine 2016 67, DOI: (10.1016/j.annemergmed.2015.11.024) Copyright © 2016 American College of Emergency Physicians Terms and Conditions

Figure 2 Point-of-care ultrasonography conducted by the pediatric emergency physician, demonstrating a 3×1.2×1.9-cm hypoechoic oval structure containing hyperechoic sediment (arrow) located just anterior to the fibular metaphysis. Annals of Emergency Medicine 2016 67, DOI: (10.1016/j.annemergmed.2015.11.024) Copyright © 2016 American College of Emergency Physicians Terms and Conditions

Figure 3 MRI showing osteomyelitis of the distal fibular metaphysis with adjacent subperiosteal abscess (measured structure). Annals of Emergency Medicine 2016 67, DOI: (10.1016/j.annemergmed.2015.11.024) Copyright © 2016 American College of Emergency Physicians Terms and Conditions