Surgical Parapharyngeal Space Tumor Analysis with Case Series Study

Figure 13

(a) An axial CT image showing the complete engulfment of the inner and outer carotid arteries by the tumor. (b) A reconstructed coronal image showing the tumor’s extension to the skull base. (c) An angiogram showing splaying of the inner and outer carotid vessels (lyres sign) and tumor blush. (d) A postembolization picture showing the coils in the left common carotid artery (star) and in the left internal carotid artery above the skull base (arrow), and the vascular plug in the left external carotid artery (circle).

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