Related Experiment Video
Updated: Sep 2, 2025
Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
Nontraumatic convexal subarachnoid hemorrhage: A case report
Hong-Liang Chen1, Bin Li1, Chao Chen1
1Department of Neurology, Binzhou Medical University Hospital, Binzhou 256600, Shandong Province, China.
Background:
Nontraumatic convexal subarachnoid hemorrhage (cSAH) is a rare type of atypical subarachnoid hemorrhage. It mainly presents as a focal and transient neurological deficit with similar manifestations as transient ischemic attack.
Case Summary:
We report a case of a 64-year-old man who visited the hospital with paroxysmal left-sided numbness and weakness is presented in this study. Computed tomography examination indicated a high-density image of the right frontal-parietal sulcus. Digital subtraction angiography showed severe stenosis at the right anterior cerebral artery A2-A3 junction (stenosis rate approximately 70%).
Conclusion:
The findings of this case indicate that anterior cerebral artery stenosis may lead to the occurrence of cSAH.
