文献出处:Neurology. 2022 May 18;10.1212/WNL.0000000000200777. doi: 10.1212/WNL.0000000000200777. Online ahead of print.Teaching NeuroImage: Primitive Drainage Pattern of Basal Vein of Rosenthal: An Under-Recognized Cause of Perimesencephalic Subarachnoid Hemorrhage