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Migration of intraocular silicone oil into the brain
  1. Jeremy Cosgrove1,
  2. Ibrahim Djoukhadar2,
  3. Daniel Warren2,
  4. Stuart Jamieson1
  1. 1Department of Neurology, Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, West Yorkshire, UK
  2. 2Department of Radiology, Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, West Yorkshire, UK
  1. Correspondence to Dr Jeremy Cosgrove, Department of Neurology, F Floor, Martin Wing, Leeds General Infirmary, Great George Street, Leeds, West Yorkshire LS1 3EX, UK; jezcos{at}doctors.net.uk

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Case report

A 74-year-old woman gave a 6-month history of predominately right-sided parietal headaches, often worse on waking. Her history included left phthisis bulbi (atrophy and calcification of the eye), resulting from multiple attempted surgical repairs for retinal detachment 20 years previously. She wore a coloured contact lens over her left eye for cosmetic purposes. Neurological examination was normal.

An unenhanced CT brain scan of her head demonstrated a high-attenuation abnormality in the left vitreous cavity with posterior extension along the optic nerve. There were further foci of high attenuation in the suprasellar region and in the frontal horn of the right lateral ventricle (figures 1 …

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