title: Migration of intraocular silicone into the cerebral ventricles.
abstract: OBJECTIVE
  To report a case in which silicone oil in the eye migrated into the cerebral ventricles and the subarachnoid space.
  
  
  METHODS
  Observational case report.
  
  
  METHODS
  A 62-year-old woman presented with proliferative diabetic retinopathy and tractive retinal detachment in her left eye. Par plana vitrectomy and injection of 5,000-centistoke-viscosity silicone oil were performed. Intraocular pressure was elevated after the operation and poorly controlled for 4 months. Eight months after the first operation, the patient felt dizzy. Computed tomography (CT), magnetic resonance imaging (MRI), and optical coherence tomography (OCT) scanning were performed.
  
  
  RESULTS
  The CT imaging, MRI, and OCT showed silicone oils migrated into the sella cistena superioris and the cerebral ventricles. Follow-up examination was continued.
  
  
  CONCLUSIONS
  Although silicone oil migrating into the ventricles is unusual, we suggest that every patient undergoing silicone oil tamponade with poorly controlled high intraocular pressure and optic disk atrophy should be carefully evaluated.
authors.affiliation: Ophthalmology Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing. d_fangtian@hotmail.com
authors.forename: Dong
authors.initials: D
authors.lastname: Fangtian
authors.forename: Dai
authors.initials: D
authors.lastname: Rongping
authors.forename: Zheng
authors.initials: Z
authors.lastname: Lin
authors.forename: Yu
authors.initials: Y
authors.lastname: Weihong
mesh_terms: D001927:Brain Diseases / Q000175:diagnosis / Q000209:etiology*; D002552:Cerebral Ventricles / Q000473:pathology*; D014695:Cerebral Ventriculography; D003930:Diabetic Retinopathy / Q000150:complications; D005129:Eye Foreign Bodies / Q000175:diagnosis / Q000209:etiology*; D005260:Female; D005548:Foreign-Body Migration / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D007429:Intraocular Pressure; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009898:Optic Disk / Q000473:pathology; D012163:Retinal Detachment / Q000209:etiology / Q000601:surgery; D012827:Silicone Oils; D013346:Subarachnoid Space / Q000000981:diagnostic imaging / Q000473:pathology*; D041623:Tomography, Optical Coherence; D014057:Tomography, X-Ray Computed; D014821:Vitrectomy
chemical_list: D012827:Silicone Oils