1 Vascular Anatomy of the Head and Neck/Circle of Willis 2 Evaluation of Tumor-Involved Vasculature (Including Balloon Test Occlusion) 3 Embolization of Skull Base Tumors 4 Vascular Supply of Local-Regional Flaps in Skull Base Surgery 5 Bypass in the Treatment of Skull Base Tumors 6 Alternatives to Standard Bypass Techniques for Skull Base Tumors (Including Direct IMax Bypass) 7 Skull Base Approaches for Aneurysm 8 Endoscopic Endonasal Aneurysm Treatment 9 Dealing with Major Intraoperative Vascular Injury During Endonasal Approaches to the Anterior Skull Base 10 Dealing with Major Intraoperative Vascular Injury 11 Dealing with Major Vascular Injuries During Endonasal Posterior Fossa Surgery 12 Vascular Challenges in Anterior Skull Base Open Surgery 13 Dealing with Vascular Injury During Middle Fossa Surgery 14 Posterior Fossa During Open Skull Base Surgery 15 Perforator Injury During Endoscopic Endonasal Skull Base Surgery 16 Perforator Injury During Open Skull Base Surgery 17 Endovascular Options to Treat Iatrogenic Vascular Injury and Tumor Involvement of the Skull Base 18 Extracranial Anterior Cranial Base Surgery for Vascular Tumors 19 Extracranial Lateral Cranial Base Vascular Tumor Surgery 20 Venous Considerations in Skull Base Surgery 21 Neurophysiologic Monitoring and Its Role During Cerebrovascular Injury 22 Simulation and Training—Preparing for Vascular Injury