1. Annals of Emergency Medicine
Man With Facial Pain 
Daniel Herbert-Cohen, MD, Jesson S.T. Yeh, MD, Jessica Hernandez, MD, Resa E. Lewiss, MD, RDMS, Turandot Saul, MD, RDMS 
Annals of Emergency Medicine 
Volume 61, Issue 3, (March 2013)
DOI: /j.annemergmed
Copyright © 2012 American College of Emergency Physicians Terms and Conditions

2. Figure 1
Erythema and edema of the left submandibular and anterior neck regions.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2012 American College of Emergency Physicians Terms and Conditions

3. Figure 2
With the tongue lifted, edema of the left sublingual soft tissues is visible.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2012 American College of Emergency Physicians Terms and Conditions

4. Figure 3
Transverse ultrasonography of the left submandibular region. Numerous hypoechoic areas contained within the left side of the neck's soft tissues distort the normal anatomy.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2012 American College of Emergency Physicians Terms and Conditions

5. Figure 4
CT of the submandibular region reveals a well-defined fluid collection along the medial aspect of the left mandibular body, as well as hyperdensity and reticulation of the surrounding soft tissue and musculature.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2012 American College of Emergency Physicians Terms and Conditions