• Aristotelis S Filippidis, Taylor J Conroy, Georgios A Maragkos, James W Holsapple, and Davies Keith G KG Department of Neurosurgery, Boston Medical Center, Boston, Massachusetts, USA..
• Division of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard Medical School Affiliate, Boston, Massachusetts, USA; Department of Neurosurgery, Boston Medical Center, Boston, Massachusetts, USA. Electronic address: afilippi@bidmc.harvard.edu.
• World Neurosurg. 2017 Jun 1; 102: 695.e7-695.e10.

BackgroundIntracranial silicone migration is a rare complication of ocular silicone oil endotamponade and may resemble intraventricular hemorrhage. The etiology of the phenomenon is challenging to understand.Case DescriptionIn an effort to shed light on this phenomenon, we report a case of a 67-year-old woman with ocular silicone oil endotamponade on the left eye due to retinal detachment who presented with headache to the emergency department. The imaging work-up revealed intraventricular silicone oil migration.ConclusionsThe literature is reviewed through the perspective of pathophysiology. The migration of intraocular silicone oil into the ventricular system provides both an important complication for clinicians to be aware of, as well as a paradigm reminding us that cerebrospinal fluid spaces may have more extensive communications with other body compartments than previously thought.Copyright © 2017 Elsevier Inc. All rights reserved.

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