Idiopathic intracranial hypertension: MRI features.
#Neurology #Neurotwitter #MRI #educational #Tweetorial
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#Neurology #Neurotwitter #MRI #educational #Tweetorial
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1⃣ Empty sella turcica (🏹)
🚨Flattened appearance of the pituitary gland against the floor of the sella turcica (🔼)
2/🧵
🚨Flattened appearance of the pituitary gland against the floor of the sella turcica (🔼)
2/🧵
2⃣ Enlarged Meckel caves bilaterally, filled with CSF (🏹)
Related to Temporal Lobe Epilepsy? Maybe
3/🧵
Related to Temporal Lobe Epilepsy? Maybe
3/🧵
3⃣ Cerebellar tonsillar ectopia
Similar to Chiari I. 🤔
Differences? Ectopia is acquired and it has normal rounded morphology 🤓
4/🧵
Similar to Chiari I. 🤔
Differences? Ectopia is acquired and it has normal rounded morphology 🤓
4/🧵
4⃣ Optic nerve head protrusion (🏹)
🚨 Distention of the optic nerve sheaths by CSF (🔼)
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🚨 Distention of the optic nerve sheaths by CSF (🔼)
5/🧵
5⃣ Postcontrast enhancement of the optic nerve head bilaterally 👀
It can be seen in other disorders, history and physical exam are 🔑 for Diff Dx
6/🧵
It can be seen in other disorders, history and physical exam are 🔑 for Diff Dx
6/🧵
6⃣Transverse sinus stenosis
One side or both sides
7/🧵
One side or both sides
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7⃣ Flattening of the posterior globes
🚨Dilated optic nerve sheath
8/8
🚨Dilated optic nerve sheath
8/8
Sources
1.- Eye (Lond). 2022 Dec 12. doi: 10.1038/s41433-022-02361-3 (favorite paper of the week, so far)
2.- Pract Neurol. 2014 Dec;14(6):380-90.
doi: 10.1136/practneurol-2014-000821
3.- J Neurol Neurosurg Psychiatry. 2018.Oct;89(10):1088-1100 doi: 10.1136/jnnp-2017-317440
1.- Eye (Lond). 2022 Dec 12. doi: 10.1038/s41433-022-02361-3 (favorite paper of the week, so far)
2.- Pract Neurol. 2014 Dec;14(6):380-90.
doi: 10.1136/practneurol-2014-000821
3.- J Neurol Neurosurg Psychiatry. 2018.Oct;89(10):1088-1100 doi: 10.1136/jnnp-2017-317440
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