Correspondence

BackgroundzzOptic disc drusen, which are calcified deposits that form anterior to the lamina cribrosa in the optic nerve, may mimic papilledema. Case ReportzzWe report herein three cases referred to us with suspicion of disc swelling and papilledema. Following ophthalmologic evaluation with B-scan ultrasound, red-free fundus photography, and computed tomography, the diagnosis of papilledema was excluded in all cas-es and optic disc drusen was diagnosed. ConclusionszzClinical suspicion of optic disc drusen in cases presenting with swelling of the optic nerve head is important in order to avoid unnecessary interventions and anxiety. The re-ported cases highlight the commonly encountered clinical presentations and the practical as-pects of diagnosis and management of optic disc drusen. J Clin Neurol 2012;8:151-154 Key Wordszz optic disc drusen, papilledema, differential diagnosis. Open Access cc This is an Open Access article distributed under the terms of the Cre-ative Commons Attribution Non-Commercial Licens