Section Editor: Sandy Cheng-Yu Chen, M.D.
Taipei Medical University Hospital, Taipei, Taiwan
Figure Caption
Pseudotumor cerebri is characterized by increased intracranial pressure of uncertain etiology. Patients are classically obese women of childbearing age with headaches and visual changes. Imaging is usually performed to rule out secondary causes of elevated CSF pressure. The classic MRI findings are flattening of the globe at the posterior pole (yellow arrow in A), an enlarged optic nerve sheath (red arrows in A), increased tortuosity of the optic nerve (seen in A), an empty sella (yellow arrow in B and C), and intraocular protrusion of the optic nerve head as well as enhancement of the optic nerve head (not seen in this patient). Treatment is usually conservative, with the primary goal being to prevent visual loss and blindness.