Journal of the Korean Association of Oral and Maxillofacial Surgeons : eISSN 2234-5930 / pISSN 2234-7550

Fig. 3.

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Fig. 3. Image (A) shows the symptomatic area in a longitudinal transducer position. Color Doppler ultrasound image (B) demonstrates a limited collection of pus (the borders are indicated by “+” and “×” calipers) at a place where the lower anterior mastoid lymph node was presumably located. Posterior auricular vessel is indicated by a waved arrow. Depth of ultrasonography is 3.0 cm.
J Korean Assoc Oral Maxillofac Surg 2021;47:398~402