Fig. 2

Representative CT and MRI images before and after operation. a Preoperative CT and vascular reconstruction images exhibited the SFT/HPC lesion in the left middle cranial fossa. This irregular high-density mass showing heterogeneous enhancement had unclear boundaries and destroyed the surrounding skull. And this lesion partially enveloped the left internal carotid artery segments C3-C4. b The preoperative enhanced T1WI images were displayed. The mass was located in the left middle cranial fossa, with unclear boundaries and heterogeneous enhancement. The lesion protruded locally into the left pontine corner cistern, partially compressed the left temporal lobe and brainstem and enveloped the C3-C4 segments of the left internal carotid artery. c The enhanced T1WI images of 1-year past operation were exhibited. The area of the original lesion showed postoperative changes without significant enhancement