article_metadata: Hideki Nakajima Takuro Tsuchiya Shigetoshi Shimizu Hidenori Suzuki
article_metadata: 10.25259/SNI_713_2021
article_metadata: Surg Neurol Int
article_metadata: 2021 Oct 6;12:498.
article_metadata: basilar artery perforator aneurysm contrast extravasation subarachnoid hemorrhage unknown etiology
article_metadata: CC BY-NC-SA
article_metadata: https://pubmed.ncbi.nlm.nih.gov/34754548/
article_metadata: Case Reports
article_metadata: PMC8571361
article_metadata: 34754548
article_metadata: Contrast extravasation from basilar artery without aneurysm formation on digital subtraction angiography in computed tomography angiogram-negative subarachnoid hemorrhage: A case report
article_metadata: 2021