Transoral Robotic Surgery in Retrostyloid Parapharyngeal Space Schwannomas

Figure 1

Patient 1 T1-weighted enhanced MRI scan: encapsulated tumor of the left retrostyloid compartment, 5 cm by 4 cm in size (white star). The internal carotid artery (black arrow) is displaced anterolaterally; the internal jugular vein is displaced posteriorly (horizontal white arrow).