Pneumomediastinum after Third Molar Extraction: Case Report, Physiopathology, and Literature Review

Figure 7

Schematic of the axial section through C2. Air can diffuse from the submandibular space to the parapharyngeal space, and then to the retropharyngeal space. IX: glossopharyngeal nerve; X: vagus nerve; XI: accessory nerve; XII: hypoglossal nerve.