58-year-old female presenting to the emergency room with visual loss and a painful right eye.
T1 and T2 weighted images were done in the axial coronal plane with high-resolution techniques focused on the orbits and anterior and visual pathways. These include fat-suppressed and images following the intravenous administration of a paramagnetic contrast agent.
Optic neuritis possibly related to demyelinating disease.
Peri-neuritic pseudotumor or possibly optic nerve and sheath manifestations of other immune mediated disease, granulomatous vasculitis or rarely chronic infections such as syphilis.
The emergency medical service was contacted urgently because the patient was complaining of visual loss and there was evidence of early optic nerve edema.