Optic perineuritis: A further cause of visual loss and disc edema in children

Optic perineuritis is a rare form of orbital inflammatory pseudotumor in which the specific target tissue is the optic nerve sheath. Patients are mainly represented by adult women. Differential diagnosis with demyelinating optic neuritis is essential in terms of prognosis and treatment. Case presentation: An 8-year-old Caucasian girl presented with bilateral loss of vision, disc edema, eye movement impairment, and diplopia. Brain MRI findings were suggestive of optic perineuritis. The patient received steroid pulse therapy followed by prolonged course of oral steroid therapy. The visual acuity recovered dramatically within 2 days. Two months later, a new MRI investigation was normal. No clinical relapse was observed at the follow-up. Discussion: We first report on a child affected by optic perineuritis. Our observation suggests that optic perineurits should be considered in the differential diagnosis of children presenting with visual loss and disc edema. An early and correct diagnosis may lead to an appropriate therapeutic approach with very good outcome.