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Updated: Apr 22, 2026

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
Published on: June 18, 2021
M5 segment aneurysm presenting as "pure acute SDH"
Navneet Singla1, Manjul Tripathi1, Rajesh Chhabra1
1Department of Neurosurgery, Postgraduate Institute of Medical Education and Research, Chandigarh, Punjab and Haryana, India.
Abstract:
Spontaneous "pure acute subdural hematoma (SDH)" is arguably a rare condition. We report on a pregnant female patient presenting as spontaneous acute SDH without subarachnoid hemorrhage (SAH) due to rupture of distal (M5 segment) middle cerebral artery aneurysm. We hereby discuss the diagnostic dilemma of this rare condition, along with the need for watchful evaluation of acute SDH without preceding head injury presenting in emergency outpatient departments, especially when it is first encountered by a trainee resident.
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