Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jun 26, 2022; 10(18): 6205-6210
Published online Jun 26, 2022. doi: 10.12998/wjcc.v10.i18.6205
Nontraumatic convexal subarachnoid hemorrhage: A case report
Hong-Liang Chen, Bin Li, Chao Chen, Xiao-Xuan Fan, Wen-Bin Ma
Hong-Liang Chen, Bin Li, Chao Chen, Wen-Bin Ma, Department of Neurology, Binzhou Medical University Hospital, Binzhou 256600, Shandong Province, China
Xiao-Xuan Fan, Department of Clinical Medicine, Binzhou Medical University, Binzhou 256600, Shandong Province, China
Author contributions: Ma WB conceived the study, participated in its design and draft the manuscript; Li B, Chen C and Fan XX collected data; Chen HL helped to draft the manuscript; all authors read and approved the final manuscript.
Supported by Research Fund of the Department of Science and Technology of Shandong Province, China, No. 2019WS328.
Informed consent statement: Written informed consent was obtained from the patient for publication of this case report.
Conflict-of-interest statement: The authors declare no conflict of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See:
Corresponding author: Wen-Bin Ma, MD, Associate Professor, Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road, Binzhou 256600, Shandong Province, China.
Received: November 14, 2021
Peer-review started: November 14, 2021
First decision: December 10, 2021
Revised: December 17, 2021
Accepted: April 29, 2022
Article in press: April 29, 2022
Published online: June 26, 2022

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.


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%).


The findings of this case indicate that anterior cerebral artery stenosis may lead to the occurrence of cSAH.

Keywords: Nontraumatic convexal subarachnoid hemorrhage, Subarachnoid hemorrhage, Transient ischemic attack, Artery atherosclerosis stenosis, Case report

Core Tip: This is a rare case of convexal subarachnoid hemorrhage (cSAH) with transient ischemic attack as the first presentation. We reported the whole course. This case indicated the clinical characteristics, laboratory findings, imaging examinations and adjustment of treatment and discussed the possible relation between anterior cerebral artery stenosis and the occurrence of cSAH.