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Updated: Dec 17, 2025

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
Posttraumatic subarachnoid fat embolism: Case presentation and literature review
Rahul Chaturvedi1, Ashley Williams2, Nikdokht Farid3
1University of California San Diego School of Medicine, 9500 Gilman Dr, La Jolla, CA 92093, USA.
Abstract:
Fat embolism in the subarachnoid space has a unique pathophysiology and clinical picture when compared to fat embolism syndrome. Lipid deposits in the subarachnoid space-most commonly the sequela of dermoid rupture in the neuraxis-can cause an inflammatory reaction leading to irritation of nearby neurovascular structures. Herein, we report the only case in the United States, to our knowledge, of a patient diagnosed with subarachnoid fat emboli secondary to sacral fracture who initially presented with a normal head CT and subsequently developed visual changes.
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