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Updated: Jun 12, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
Bilateral acute subdural hematoma from ruptured posterior communicating artery aneurysm. A case report
H Boujemâa1, F Góngora-Rivera, H Barragán-Campos
1Department of Neuroradiology, Pitié - Salpetrière Hospital; Paris, France - nader.sourour@psl.ap-hop-paris.fr.
Summary:
Brain tumors, hematological diseases and vascular malformations like fistulas or arteriovenous malformations are the most well known causes of non-traumatic subdural hematoma (SDH) (1). Although spontaneous subdural hematoma from ruptured intracranial aneurysm has been reported (2), SDH with non radiographic evidence of subarachnoid hemorrhage is very rare (3,4). Moreover, a patient with acute and bilateral spontaneous subdural hematoma secondary to ruptured left posterior communicating artery aneurysm has not been reported to date. The clinical findings and etiologic mechanisms are discussed.
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