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Fig. 20 | Insights into Imaging

Fig. 20

From: Computed tomography in traumatic orbital emergencies: a pictorial essay—imaging findings, tips, and report flowchart

Fig. 20

CT appearance of the various ocular interventions that can mimic open globe fractures and/or vitreous hemorrhages. 32-Year-old patients with an increase of the anteroposterior diameter of the left eyeball, related to a myopic eye, previously treated for e retinal detachment, with current CT evidence of intraocular air-bubble-like components (white arrows), corresponding to perfluoropropane gas bubbles (a). b Coronal CT reconstruction showing a scleral buckle surgery with low attenuation device (black arrow) that mildly indents the temporal aspect of the left globe and encircles the scleral buckle (metallic density ring around the left globe, white empty arrows). c. highly attenuation silicone oil in the left globe (asterisk) placed after surgical vitrectomy to treat a retinal detachment. To help the differential diagnosis with hemovitreous, the attenuation values in Hounsfield Units (HU) can be assessed, with silicone oil having values greater than 100 HU

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