ABSTRACT
PURPOSE: To evaluate the contribution of MRI exploration for the evaluation of orbital prothesis biocolonization. PATIENTS AND 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. CONCLUSION: 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.
Subject(s)
Magnetic Resonance Imaging , Neovascularization, Physiologic , Orbital Implants , Retinal Neoplasms/surgery , Retinoblastoma/surgery , Child , Child, Preschool , Female , Humans , Male , Retrospective StudiesSubject(s)
Coloboma/diagnosis , Cysts/congenital , Edema/congenital , Hemorrhage/congenital , Magnetic Resonance Imaging , Microphthalmos/diagnosis , Orbital Diseases/congenital , Orbital Diseases/etiology , Ultrasonography , Cysts/diagnosis , Diagnosis, Differential , Edema/diagnosis , Edema/etiology , Hemorrhage/diagnosis , Humans , Infant, Newborn , MaleABSTRACT
INTRODUCTION: A large optic cup is a sign of glaucoma, although it has been reported in other optic neuropathies, particularly in compressive neuropathies. CASE REPORT: A 37-year-old man presented with a decrease in visual acuity for 2 months. Fundus biomicroscopic examination revealed a glaucoma-like bilateral and asymmetric large optic cup. Neuroradiological examination revealed an expansive mass in the sella turcica that was compressing the optic tract. CONCLUSIONS: Optic nerve compression can lead to perimetric alterations and optic disc anomalies such as those seen in normal-tension glaucoma. Age under 50 years, visual loss, and neuroretinal rim pallor may lead to a suspicion of compressive neuropathy.
