Idiopathic intracranial hypertension: Imaging and clinical fundamentals

Figure 7 Optic nerve tortuosity. A: An axial T2-weighted magnetic resonance image at the level of the globe and optic nerve in a patient with no intracranial hypertension signs or symptoms is provided for reference. Note the course of this normal-appearing optic nerve (arrows); B: An axial T2-weighted magnetic resonance image at the level of the globe and optic nerve in a patient with signs and symptoms of idiopathic intracranial hypertension demonstrates obvious tortuosity of the optic nerves in their intraorbital segments (arrows). Also note an empty sella appearance (*) and optic nerve sheath distension, representing additional signs supporting this diagnosis.