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Updated: May 17, 2026

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
Published on: June 18, 2021
Intracranial supraclinoid ICA dissection causing cerebral infarction and subsequent subarachnoid hemorrhage
Naif M Alotaibi1, Jennifer E Fugate, Timothy J Kaufmann
1Department of Neurologic Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
Background:
Intracranial arterial dissection usually leads to cerebral infarction or subarachnoid hemorrhage (SAH). It is rare to see both complications in one clinical scenario.
Methods:
Case report and review of the literature.
Results:
A 48-year-old woman suffered a left middle cerebral infarct from a dissection of the left supraclinoid ICA. As she was recovering from the ischemic stroke 5 days later she suffered a SAH. The SAH was caused by rupture of a dissecting pseudoaneurysm, which only became evident on repeat catheter angiography. The dissecting pseudoaneurysm was treated with coil occlusion.
Conclusion:
Intracranial ICA dissections are typically associated with either ischemic or hemorrhagic presentation. We report an unusual case of a patient who suffered a SAH a few days after an ischemic stroke from the dissection. This case contradicts the long-held dogma that intracranial dissection can have either an ischemic or a hemorrhagic presentation, but not both.
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