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The Egyptian Journal of Otolaryngology
Fig. 4 | The Egyptian Journal of Otolaryngology

Fig. 4

From: Biphasic CT imaging of deep neck infections (DNIs): how does dual injection mode helps in differentiation between types of collections?

Fig. 4

A 30-year-old male with odontogenic masticator abscess. Axial images in a and b show well-defined rim sign provided by good biphasic technique. Also noted fluid collection (10–20 HU) and air foci within abscess collection and masseteric and pterygoid muscular compartments. Coronal image (c) shows communication below the mandible. Sagittal image (d) reveals residual peri-dental disease following extraction of unhealthy dental disease

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