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This video demonstrates the microscopic neurosurgical anatomy seen during clipping of a cerebral aneurysm, a common surgery performed by the UMMC Department of Neurosurgery. This aneurysm was found incidentally on work-up of a headache and referred to Dr. J. Mark Simard for further management. The aneurysm was clipped successfully and without issue. The patient discharged from the hospital 2 days after surgery without issue. Cerebral aneurysms are at risk of rupturing and causing devastating bleeds in the brain. By applying a clip on the neck of the aneurysm, the normal structure of the vessel is restored and the risk of a life-threatening bleed drops to nearly zero.