<prompt> Glioma of optic nerve is usually -GemistocyticPilocyticFibrillaryLamellar  <response>: Ans. is b i.e., Pilocytic Optic nerve glioma o Optic nerve glioma, also referred to as juvenile pilocytic astrocytoma, is the most frequent tumor of the optic nerve in childhood. o It is a developmental hamaoma. o It is either stationary or only slowly progressive. o Tumor may arise in any poion of nerve -- i Intraorbital, ii Intracanalicular iii Intracranial 