Department of Neurosurgery The Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan Province China;
Department of Emergency Medicine The Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan Province China;
Department of Neurosurgery The Affiliated Hospital of North Sichuan Medical College Nanchong 637000 Sichuan Province China;
Intracranial aneurysm; Misdiagnosis; Cerebral circulation insufficiency; Case;