Cavernous malformation of the optic pathway mimicking optic glioma: a case report

Purpose Optic pathway cavernous malformations (CMs) are extremely rare, accounting for less than 1 % of all intracranial CMs. We report a case of optic pathway CM mimicking optic glioma because the initial magnetic resonance (MR) images did not disclose hemorrhagic findings such as popcorn-like lesion or hemosiderin ring.