title: Pretruncal subarachnoid hemorrhage: an anatomically correct description of the perimesencephalic subarachnoid hemorrhage.
authors.forename: W I
authors.initials: WI
authors.lastname: Schievink
authors.forename: E F
authors.initials: EF
authors.lastname: Wijdicks
mesh_terms: D001933:Brain Stem / Q000098:blood supply*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008636:Mesencephalon / Q000098:blood supply*; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis*; D009626:Terminology as Topic