Idiopathic intracranial hypertension
Updates to Study Attributes
Technique: Volumetric acquisition through the brain, including pre and post contrast sequences for venogram purposes.
Findings: Asymmetry of the lateral ventricles mild bulkiness to the left thalamus. No definite mass identified. A vessel traversing the inferior right frontal lobe extending to the anterior horn of the right lateral ventricle in keeping with a developmental venous anomaly. The optic nerves are distended bilaterally with associated proptosis. This could be further evaluated with MRI.
The venous sinuses enhance normally without evidence of dural venous sinus thrombosis. No intra or extra-axial haemorrhage is seen.
Updates to Study Attributes
Technique: Pre and post-contrast multiplanar, multisequence imaging have been obtained through the brain including MRV.
Findings: Asymmetric lateral ventricles again noted without any underlying abnormality or abnormal signal; no "slit ventricles". No intra or extra-axial collection, mass or focal abnormality.
No restricted diffusion. No evidence of previous infarction or haemorrhage. No abnormal contrast enhancement.
Dilatation and mild tortuosity of both extra-cranial optic nerve sheaths. No abnormal T2/STIR or post contrast enhancement of the optic nerve. Partially empty sella. Increased nuchal fat noted.
MRV - no evidence of venous sinus thrombosis but typical and marked focal narrowing of the transverse sinuses laterally.
Conclusion: Dilatation and tortuosity of both extra-cranial optic nerves, partially empty fossa, pinched transverse sinuses and increased subcutaneous fat are typical features of idiopathic intracranial hypertension. Correlation with CSF opening pressures would be beneficial. No space occupying lesion or dural venous thrombus.
Image MRI (T1) ( update )
Image MRI (FLAIR) ( update )
Image MRI (T1) ( update )
Image MRI (T1 C+ fat sat) ( update )
Image MRI (T1 C+ fat sat) ( update )
Image MRI (T2) ( update )
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Image MRI (Gradient Echo) ( update )
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Image MRI (ADC) ( update )
Image MRI (DWI) ( update )
Image MRI (T2 fat sat) ( update )
Image MRI (T1 C+) ( update )
Image MRI (T1 C+ fat sat) ( update )
Image 1 MRI (T1) ( update )
Image 2 MRI (T1 C+ fat sat) ( update )
Image 3 MRI (T1 C+ fat sat) ( update )
Image 4 MRI (T2 fat sat) ( update )
Image 5 MRI (T1 C+ fat sat) ( update )
Image 6 MRI (T1) ( update )
Image 7 MRI (T2) ( update )
Image 8 MRI (T1 C+) ( update )
Image 9 MRI (FLAIR) ( update )
Image 10 MRI (Gradient Echo) ( update )
Image 11 MRI (T2) ( update )
Image 12 MRI (DWI) ( update )
Image 13 MRI (ADC) ( update )
Updates to Case Attributes
Dilatation and tortuosity of both extra-cranial optic nerves, partially empty fossa, pinched transverse sinuses and increased subcutaneous fat are typical imaging features of idiopathic intracranial hypertension. Correlation with CSF opening pressures was recommended and then performed under fluoroscopic guidance, showing mildly elevated values.
- +<p>Dilatation and tortuosity of both extra-cranial optic nerves, partially empty fossa, pinched transverse sinuses and increased subcutaneous fat are typical imaging features of <a title="Idiopathic intracranial hypertension" href="/articles/idiopathic-intracranial-hypertension-1">idiopathic intracranial hypertension</a>. Correlation with CSF opening pressures was recommended and then performed under fluoroscopic guidance, showing mildly elevated values. </p>
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