The clinical and CT findings features of nonaneurysmal perimesencephalic subarachnoid hemorrhage
10.3969/j.issn.1002-1671.2025.05.006
- VernacularTitle:非动脉瘤性中脑周围蛛网膜下腔出血临床及CT表现特征
- Author:
Yali HUANG
1
;
Chao WEI
1
;
Huimin CHEN
1
;
Xinguan YANG
1
Author Information
1. 桂林医学院第五临床医学院 桂林市人民医院放射科,广西 桂林 541002
- Publication Type:Journal Article
- Keywords:
nonaneurysmal;
subarachnoid hemorrhage;
perimesencephalic;
computed tomography
- From:
Journal of Practical Radiology
2025;41(5):746-748
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical and CT findings features of nonaneurysmal perimesencephalic subarachnoid hem-orrhage(NAPSAH).Methods A retrospective analysis was conducted on 19 cases of NAPSAH confirmed by clinical treatment and follow-up,and their clinical and CT findings features were summarized.Results All patients exhibited mild clinical symptoms and had a good prognosis without complications.The sites of NAPSAH involved the anterior cistern in 17 cases,the suprasellar cistern in 8 cases,the interpeduncular cistern in 7 cases,the anterior cistern only in 1 case,and the suprasellar cistern only in 1 case;Among them,4 cases had vertebrobasilar dolichoectasia(VBD)and 3 cases had tortuous prolongation of vertebrobasilar artery.Conclusion The incidence of NAPSAH is low,the clinical symptoms are mild and good prognosis.It has typical imaging features.Most of its hemorrhage sites are confined to the anterior cistern,suprasellar cistern and interpeduncular cistern.Combining clinical and CT find-ings helpful to improve the accuracy of diagnosis.
