| Abstract: | ![]()
A case of idiopathic inflammation of optic nerve(perioptic neuritis) simulating optic nerve sheathmeningioma is reported with a review of the litera-ture. Idiopathic inflammation of optic nerve causesthe enlargement of optic nerve and sheath, the radio-logic feature of which may be fusiform or tubularuniformly diffuse thickening with a central hypo-dense area as is shown typically in this case (so-called tram-tracking sign). Idiopathic periopticneuritis is an important condition in the differentialdiagnosis of visual loss when CT demonstrates en-Iargement of optic nerve. |
