Improved Transverse Sinus Stenosis after Lumbar Puncture in Idiopathic Intracranial Hypertension

Idiopathic intracranial hypertension (IIH) is characterized by elevated intracranial pressure (ICP) without explainable other causes. The pathophysiology is still unclear, but, it is known to be associated with sex and body mass index (BMI). There are some typical image findings, such as empty sella, flattening of the posterior globes at the insertion of the optic nerves, protrusion of the optic nerve head, tortuosity of the intraorbital optic nerve, and bilateral transverse sinus stenosis. We report a patient with IIH showing transverse sinus stenosis, which improved after several times of lumbar puncture.