1. Neonate With a Swollen Thigh
Almaz Dessie, MD, Erika Constantine, MD 
Annals of Emergency Medicine 
Volume 68, Issue 5, Pages e87-e88 (November 2016)
DOI: /j.annemergmed
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

2. Figure 1
Left: Ultrasonographic transverse image showing diffuse soft tissue edema (short arrow) and irregular, thickened cortical surface of the distal femur (long arrow). Right: Comparison image of normal femur and soft tissues.
Annals of Emergency Medicine  , e87-e88DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

3. Figure 2
Ultrasonographic transverse image showing a 1×1-cm subperiosteal fluid collection (long arrow) with disruption of the overlying cortex (short arrow). Adjacent irregular, thickened, but intact bony cortex (ˆ).
Annals of Emergency Medicine  , e87-e88DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

4. Figure 3
MRI showing 1-cm intraosseous fluid collection in the distal femoral metaphysis (long arrow), extending into the epiphysis and knee joint (short arrow).
Annals of Emergency Medicine  , e87-e88DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions