Ocular silicone oil in the lateral cerebral ventricle

Campbell, Garth; Milbourne, Shannon; Salman, Umber; Khan, Majid

doi:10.1016/j.jocn.2012.09.037

Cited by 15 publications

(13 citation statements)

References 7 publications

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“…reported that the thickness of scleral flange (sclera between the optic nerve border and the optic nerve dura matter) decreased significantly with axial length and the SAS was suspected to be dilated in highly myopic eyes. There were also several case reports in which intravitreous silicone oil migrated into the ventricles6789. The mechanism of how silicone oil went into cerebral ventricle is still unclear, but the most likely access is through the SAS surrounding the optic nerve.…”

mentioning

confidence: 99%

Associated factors for visibility and width of retrobulbar subarachnoid space on swept-source optical coherence tomography in high myopia

Fan

Ma²,

Gao³

et al. 2016

Sci Rep

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Subarachnoid space (SAS) around optic nerve can be visible with swept-source optical coherence tomography (SS-OCT). However, the relevant factors for its visibility and width have not been reported. In this prospective study, 193 eyes with high myopia were evaluated by SS-OCT. The relationship between age, gender, axial length, optic disc area, parapapillary atrophy (PPA) area, peripapillary choroidal thickness with the visibility and width of SAS were assessed. The results showed that SAS was observed in 125 (64.8%) and not observed in 68 (35.2%) eyes. Visibility of SAS is associated with long axial length, high myopia, thin choroid, large PPA and large optic disc areas. Among these associations, PPA area was the only independent factor (b = 0.177, p < 0.001). The width of SAS was associated with thin choroid, long axial length, large optic disc area and large PPA area. Multivariant analysis showed that optic disc area and PPA area were independent factors for the width of SAS (b = 30.8, p = 0.016 and 16.2, p < 0.001 respectively). These results suggested that SAS was extended into the peripapillary region possibly due to extension of posterior sclera in high myopia.

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mentioning

confidence: 99%

Associated factors for visibility and width of retrobulbar subarachnoid space on swept-source optical coherence tomography in high myopia

Fan

Ma²,

Gao³

et al. 2016

Sci Rep

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“…Intraventricular migration is a known but rare complication of intraocular silicone oil endotamponade having been described in only 11 case reports to our knowledge (Table 1) [6,7]. The precise mechanism of silicone oil migration is not well understood.…”

Section: Pathophysiologymentioning

confidence: 99%

“…The precise mechanism of silicone oil migration is not well understood. One hypothesis is that silicone oil first enters the optic nerve via a pseudo-Schnabel cavernous degeneration mechanism in which silicone oil migrates from the vitreous humor through the lamina cribosa into the optic nerve [6,8]. It subsequently gains access to the subarachnoid spaces around the optic nerve due to persistent increased intraocular pressure, eventually migrating into the ventricular system via the foramina of Magendie and Luschka [5][6][7]9].…”

Section: Pathophysiologymentioning

confidence: 99%

“…On NECT scans, silicone oil appears hyperdense, with an attenuation higher than hemorrhage, usually measuring 70-140 Hounsfield units (HU). In addition, silicone oil characteristically forms convex fluid-fluid interfaces in the non-dependent ventricles (due to the high surface tension and low specific gravity of silicon oil) [6,7,11,12]. On MRI, silicone oil is hyperintense on T1-weighted imaging with a prominent chemical shift artifact [13].…”

Section: Imaging Findingsmentioning

confidence: 99%

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Intraventricular migration of silicone oil: A mimic of traumatic and neoplastic pathology

Chiao

Ksendzovsky

Buell

et al. 2015

Journal of Clinical Neuroscience

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“…The migration of this silicon intracranially is rare and very few instances have been reported till date. 2,3…”

Section: Introductionmentioning

confidence: 99%

Intraventricular Silicone Oil: An Imitator

Reddy¹,

Narayanappa²,

Shukla³

et al. 2016

The Journal of Medical Sciences

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Introduction Silicone oils are used in vitreoretinal surgery and it helps in maintaining the shape and fullness of the orbital globe. Rarely, they may get leaked from the orbit and may track to the brain in cerebrospinal fluid spaces like cisterns, ventricles. This can be documented by computed tomography with hyperdense oil. We are presenting a very rare case of the orbital silicon oil seepage into the ventricle. We report the role of multidetector computed tomography to see silicone oil migrating from orbits to the brain. Not many cases are reported in the literature. How to site this article Reddy AK, Narayanappa M, Shukla AK, Jayamohan AE. Intraventricular Silicone Oil: An Imitator. J Med Sci 2016;2(3):48-49.

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Ocular silicone oil in the lateral cerebral ventricle

Cited by 15 publications

References 7 publications

Associated factors for visibility and width of retrobulbar subarachnoid space on swept-source optical coherence tomography in high myopia

Associated factors for visibility and width of retrobulbar subarachnoid space on swept-source optical coherence tomography in high myopia

Intraventricular migration of silicone oil: A mimic of traumatic and neoplastic pathology

Intraventricular Silicone Oil: An Imitator

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