Findings:
No intra- or extra-axial mass lesion or collection is identified. The ventricles and sulcal spaces are within normal limits. No hydrocephalus or midline shift.
The brain parenchyma is unremarkable with. No diffusion restriction, no barrier disruption. No abnormal meningeal enhancement.
The pituitary gland is within the normal limits.
MR venography reveals marked focal stenosis of the lateral aspect of both transverse sinuses. No cerebral sinus thrombosis.
Slightly prominent subarachnoid space around the optic nerves and mild vertical tortuosity of the optic nerves. No flattening of the posterior sclera.
Normal appearance of the intracranial arteries.
The paranasal sinuses and mastoid air cells are clear.
No bony abnormality is seen.
Impression:
Bilateral venous sinus stenosis as well as mild distension of optic nerve sheath complex bilaterally, suggestive of idiopathic intracranial hypertension (pseudotumor cerebri).
No empty sella.