Hara H, Nagashima H, Koike G, Sakai K, Kobayashi S
Neurosurgical Service, Aizawa Hospital, Nagano.
Neurol Med Chir (Tokyo). 1991 Apr;31(4):206-9. doi: 10.2176/nmc.31.206.
The authors report a case of subarachnoid hemorrhage due to spontaneous dissection of the intracranial segment of the left vertebral artery. Serial angiography demonstrated spontaneous entrapment of the lesion 4 months after ictus.