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Figure 1. (a) Axial contrast-enhanced CT at the level of the oropharynx shows a large, seemingly well-defined, inhomogeneously enhanced mass in the right parapharyngeal space with multiple small areas of low attenuation inside. Note the compromise of the regional airway and encasement of the adjacent carotid artery. (b) Axial contrast-enhanced CT at the level of the skull base and (c) coronal contrast-enhanced CT show irregular bony destruction of the right jugular fossa and hypoglossal canal, and intracranial invasion with perineural tumour spread. (d) Axial contrast-enhanced CT at the level of the sella shows right cavernous sinus invasion with obliteration of Meckel's cave and retrograde tumour extension to the right prepontine cistern.
