title: [MRI exploration for the evaluation of orbital implant biocolonization in children enucleated for retinoblastoma].
abstract: OBJECTIVE
  To evaluate the contribution of MRI exploration for the evaluation of orbital prothesis biocolonization.
  
  
  METHODS
  We studied ten eyes of ten children who underwent enucleation for retinoblastoma and synthetic hydroxyapatite orbital implantation. Each patient was examined by MRI imaging with gadolinium within 2 months to 1 year.
  
  
  RESULTS
  After gadolinium administration, five implants showed an enhancement. Nodular enhancement around the implant was noted in one patient with a recurrence of retinoblastoma, and brain metastases were shown in two cases. None of the orbital implants was rejected.
  
  
  CONCLUSIONS
  Fibrovascular colonization reduces the risk of orbital implant migration. Magnetic resonance imaging is safe and effective in detecting extrusion or tolerance of the orbital implant.
authors: Service de Radiologie Pédiatrique- Hôpital d'Enfants de Tunis, 1007 Tunis Jabbari, Tunisie. khomsiwiem@yahoo.fr
authors: W
authors: W
authors: Douira-Khomsi
authors: N
authors: N
authors: Korchane
authors: H
authors: H
authors: Louati
authors: L
authors: L
authors: Bhouri
authors: I
authors: I
authors: Kchaou
authors: L
authors: L
authors: Ben Hassine
authors: H
authors: H
authors: Bouguila
authors: S
authors: S
authors: Ayed
authors: I
authors: I
authors: Bellagha
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D018919:Neovascularization, Physiologic; D020273:Orbital Implants; D019572:Retinal Neoplasms / Q000601:surgery*; D012175:Retinoblastoma / Q000601:surgery*; D012189:Retrospective Studies