Fig. 2

Clinical case 1. 57-year-old female patient with a large skull base chordoma, leading to severe brainstem compression. a Preoperative MRI. b Intraoperative photograph: 1—basilar artery; 2— right SCA; 3—right PCA; 4—left PCA; 5—left SCA; 6—left AICA; 7—lower pons; and 8—left PICA. c Intraoperative photograph: 1—basilar artery; 2—left AICA; 3—upper pons; 4—arachnoid mater; and 5—left abducent nerve. d MRI 7.5 years after surgery (no signs of tumor recurrence)