Preoperative simulation of a model of cavernous hemangioma in the cavernous sinus. (a) In the left anterior view, the tumor was closely related to the cavernous sinus. (b) In the coronal view, the tumor expanded toward the right suprasellar region. (c) Simulation of the transpterional approach. (d) Simulation of the subtemporal approach (Red – arteries; Yellow - bone mass; Light blue - tumor).