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: 10.1016/j.annemergmed.2012.07.015 Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 1 Erythema and edema of the left submandibular and anterior neck regions. Annals of Emergency Medicine 2013 61, DOI: (10.1016/j.annemergmed.2012.07.015) Copyright © 2012 American College of Emergency Physicians Terms and Conditions

Figure 2 With the tongue lifted, edema of the left sublingual soft tissues is visible. Annals of Emergency Medicine 2013 61, DOI: (10.1016/j.annemergmed.2012.07.015) Copyright © 2012 American College of Emergency Physicians Terms and Conditions

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 2013 61, DOI: (10.1016/j.annemergmed.2012.07.015) Copyright © 2012 American College of Emergency Physicians Terms and Conditions

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 2013 61, DOI: (10.1016/j.annemergmed.2012.07.015) Copyright © 2012 American College of Emergency Physicians Terms and Conditions