Facing the Danger Zone: The Use of Ultrasound to Distinguish Cellulitis from Abscess in Facial Infections

Figure 7

Bedside ultrasound of case patient using linear probe, sagittal view. A distinct abscess (single arrow) is apparent in the subcutaneous tissue overlying the maxilla (double arrows). The single arrow points to the abscess, which is distinguished as a well-circumscribed area of hypoechoic fluid.