PechlivanisIShangFHardersASchulte-AltedorneburgGNolteISchmiederK. Perimesencephalic hemorrhage and vessel variants. Cent Eur Neurosurg2011; 72:78–83.
2.
MatsumaruYYanakaKMuroiASatoHKamezakiTNoseT. Significance of a small bulge on the basilar artery in patients with perimesencephalic nonaneurysmal subarachnoid hemorrhage: report of two cases. J Neurosurg2003; 98:426–9.
3.
SchievinkWIWijdicksEF. Origin of pretruncal nonaneurysmal subarachnoid hemorrhage: ruptured vein, perforating artery or intramural hematoma?Mayo Clin Proc2000; 7:1169–73.
4.
ParkSQKwonOKKimSHOhCWHanMH. Pre-mesencephalic subarachnoid hemorrhage: rupture of tiny aneurysms of the basilar artery perforator. Acta Neurochir (Wien)2009; 151:1639–46.
5.
RinkelGJWijdicksEFVermeulenM. Nonaneurysmal perimesencephalic subarachnoid hemorrhage: CT and MR patterns that differ from aneurysmal rupture. AJNR Am J Neuroradiol1991; 12:829–34.
