Pseudotumor cerebri MRI: Difference between revisions
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==Overview== | ==Overview== | ||
==MRI== | ==MRI== | ||
<big>MRI</big> findings of parenchyma and [[Brain ventricle|ventricles]] are mostly normal but some anomalies have been reported in [[Idiopathic intracranial hypertension|IIH]] patients: | |||
* Posterior sclera flattening (43 to 80 percent) | |||
* Perioptic [[subarachnoid space]] distesion (45 to 67 percent) | |||
* Gadolinium enhancement of the prelaminar [[optic nerve]] (7 to 50 percent) | |||
[ | * [[Empty sella]] (25 to 80 percent) | ||
*[ | * Prelaminar [[optic nerve]] protrusion (3 to 30 percent) | ||
*[ | * Orbital optic nerve vertical tortuosity (40 percent)<ref name="pmid9754178">{{cite journal |vauthors=Brodsky MC, Vaphiades M |title=Magnetic resonance imaging in pseudotumor cerebri |journal=Ophthalmology |volume=105 |issue=9 |pages=1686–93 |date=September 1998 |pmid=9754178 |doi=10.1016/S0161-6420(98)99039-X |url=}}</ref><ref name="pmid8416612">{{cite journal |vauthors=Gibby WA, Cohen MS, Goldberg HI, Sergott RC |title=Pseudotumor cerebri: CT findings and correlation with vision loss |journal=AJR Am J Roentgenol |volume=160 |issue=1 |pages=143–6 |date=January 1993 |pmid=8416612 |doi=10.2214/ajr.160.1.8416612 |url=}}</ref><ref name="pmid2392235">{{cite journal |vauthors=Jacobson DM, Karanjia PN, Olson KA, Warner JJ |title=Computed tomography ventricular size has no predictive value in diagnosing pseudotumor cerebri |journal=Neurology |volume=40 |issue=9 |pages=1454–5 |date=September 1990 |pmid=2392235 |doi= |url=}}</ref><ref name="pmid7477858">{{cite journal |vauthors=Manfré L, Lagalla R, Mangiameli A, Lupo F, Giuffré G, Ponte F, Cardinale AE |title=Idiopathic intracranial hypertension: orbital MRI |journal=Neuroradiology |volume=37 |issue=6 |pages=459–61 |date=August 1995 |pmid=7477858 |doi= |url=}}</ref><ref name="pmid11105018">{{cite journal |vauthors=Yuh WT, Zhu M, Taoka T, Quets JP, Maley JE, Muhonen MG, Schuster ME, Kardon RH |title=MR imaging of pituitary morphology in idiopathic intracranial hypertension |journal=J Magn Reson Imaging |volume=12 |issue=6 |pages=808–13 |date=December 2000 |pmid=11105018 |doi= |url=}}</ref><ref name="pmid21680652">{{cite journal |vauthors=Degnan AJ, Levy LM |title=Pseudotumor cerebri: brief review of clinical syndrome and imaging findings |journal=AJNR Am J Neuroradiol |volume=32 |issue=11 |pages=1986–93 |date=December 2011 |pmid=21680652 |doi=10.3174/ajnr.A2404 |url=}}</ref><ref name="pmid23615489">{{cite journal |vauthors=Hoffmann J, Huppertz HJ, Schmidt C, Kunte H, Harms L, Klingebiel R, Wiener E |title=Morphometric and volumetric MRI changes in idiopathic intracranial hypertension |journal=Cephalalgia |volume=33 |issue=13 |pages=1075–84 |date=October 2013 |pmid=23615489 |doi=10.1177/0333102413484095 |url=}}</ref> | ||
* | some of the less common findings are: | ||
* tonsillar ectopia | |||
* Meckel’s cave and cavernous sinuses stenosis | |||
* [[Meningocele|meningoceles]] | |||
* [[Foramen ovale]] widening<ref name="pmid21412109">{{cite journal |vauthors=Degnan AJ, Levy LM |title=Narrowing of Meckel's cave and cavernous sinus and enlargement of the optic nerve sheath in Pseudotumor Cerebri |journal=J Comput Assist Tomogr |volume=35 |issue=2 |pages=308–12 |date=2011 |pmid=21412109 |doi=10.1097/RCT.0b013e31820d7a70 |url=}}</ref><ref name="pmid22761347">{{cite journal |vauthors=Butros SR, Goncalves LF, Thompson D, Agarwal A, Lee HK |title=Imaging features of idiopathic intracranial hypertension, including a new finding: widening of the foramen ovale |journal=Acta Radiol |volume=53 |issue=6 |pages=682–8 |date=July 2012 |pmid=22761347 |doi=10.1258/ar.2012.110705 |url=}}</ref><ref name="pmid16682058">{{cite journal |vauthors=Banik R, Lin D, Miller NR |title=Prevalence of Chiari I malformation and cerebellar ectopia in patients with pseudotumor cerebri |journal=J. Neurol. Sci. |volume=247 |issue=1 |pages=71–5 |date=August 2006 |pmid=16682058 |doi=10.1016/j.jns.2006.03.016 |url=}}</ref><ref name="pmid24555598">{{cite journal |vauthors=Bialer OY, Rueda MP, Bruce BB, Newman NJ, Biousse V, Saindane AM |title=Meningoceles in idiopathic intracranial hypertension |journal=AJR Am J Roentgenol |volume=202 |issue=3 |pages=608–13 |date=March 2014 |pmid=24555598 |pmc=4041691 |doi=10.2214/AJR.13.10874 |url=}}</ref> | |||
<big>MRV (</big>Magnetic resonance venography) finding is transverse venous sinus stenosis which is suggestive of increased [[intracranial pressure]].<ref name="pmid23219404">{{cite journal |vauthors=Kelly LP, Saindane AM, Bruce BB, Ridha MA, Riggeal BD, Newman NJ, Biousse V |title=Does bilateral transverse cerebral venous sinus stenosis exist in patients without increased intracranial pressure? |journal=Clin Neurol Neurosurg |volume=115 |issue=8 |pages=1215–9 |date=August 2013 |pmid=23219404 |pmc=3610812 |doi=10.1016/j.clineuro.2012.11.004 |url=}}</ref> | |||
==References== | ==References== | ||
Latest revision as of 17:47, 8 August 2018
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
Overview
MRI
MRI findings of parenchyma and ventricles are mostly normal but some anomalies have been reported in IIH patients:
- Posterior sclera flattening (43 to 80 percent)
- Perioptic subarachnoid space distesion (45 to 67 percent)
- Gadolinium enhancement of the prelaminar optic nerve (7 to 50 percent)
- Empty sella (25 to 80 percent)
- Prelaminar optic nerve protrusion (3 to 30 percent)
- Orbital optic nerve vertical tortuosity (40 percent)[1][2][3][4][5][6][7]
some of the less common findings are:
- tonsillar ectopia
- Meckel’s cave and cavernous sinuses stenosis
- meningoceles
- Foramen ovale widening[8][9][10][11]
MRV (Magnetic resonance venography) finding is transverse venous sinus stenosis which is suggestive of increased intracranial pressure.[12]
References
- ↑ Brodsky MC, Vaphiades M (September 1998). "Magnetic resonance imaging in pseudotumor cerebri". Ophthalmology. 105 (9): 1686–93. doi:10.1016/S0161-6420(98)99039-X. PMID 9754178.
- ↑ Gibby WA, Cohen MS, Goldberg HI, Sergott RC (January 1993). "Pseudotumor cerebri: CT findings and correlation with vision loss". AJR Am J Roentgenol. 160 (1): 143–6. doi:10.2214/ajr.160.1.8416612. PMID 8416612.
- ↑ Jacobson DM, Karanjia PN, Olson KA, Warner JJ (September 1990). "Computed tomography ventricular size has no predictive value in diagnosing pseudotumor cerebri". Neurology. 40 (9): 1454–5. PMID 2392235.
- ↑ Manfré L, Lagalla R, Mangiameli A, Lupo F, Giuffré G, Ponte F, Cardinale AE (August 1995). "Idiopathic intracranial hypertension: orbital MRI". Neuroradiology. 37 (6): 459–61. PMID 7477858.
- ↑ Yuh WT, Zhu M, Taoka T, Quets JP, Maley JE, Muhonen MG, Schuster ME, Kardon RH (December 2000). "MR imaging of pituitary morphology in idiopathic intracranial hypertension". J Magn Reson Imaging. 12 (6): 808–13. PMID 11105018.
- ↑ Degnan AJ, Levy LM (December 2011). "Pseudotumor cerebri: brief review of clinical syndrome and imaging findings". AJNR Am J Neuroradiol. 32 (11): 1986–93. doi:10.3174/ajnr.A2404. PMID 21680652.
- ↑ Hoffmann J, Huppertz HJ, Schmidt C, Kunte H, Harms L, Klingebiel R, Wiener E (October 2013). "Morphometric and volumetric MRI changes in idiopathic intracranial hypertension". Cephalalgia. 33 (13): 1075–84. doi:10.1177/0333102413484095. PMID 23615489.
- ↑ Degnan AJ, Levy LM (2011). "Narrowing of Meckel's cave and cavernous sinus and enlargement of the optic nerve sheath in Pseudotumor Cerebri". J Comput Assist Tomogr. 35 (2): 308–12. doi:10.1097/RCT.0b013e31820d7a70. PMID 21412109.
- ↑ Butros SR, Goncalves LF, Thompson D, Agarwal A, Lee HK (July 2012). "Imaging features of idiopathic intracranial hypertension, including a new finding: widening of the foramen ovale". Acta Radiol. 53 (6): 682–8. doi:10.1258/ar.2012.110705. PMID 22761347.
- ↑ Banik R, Lin D, Miller NR (August 2006). "Prevalence of Chiari I malformation and cerebellar ectopia in patients with pseudotumor cerebri". J. Neurol. Sci. 247 (1): 71–5. doi:10.1016/j.jns.2006.03.016. PMID 16682058.
- ↑ Bialer OY, Rueda MP, Bruce BB, Newman NJ, Biousse V, Saindane AM (March 2014). "Meningoceles in idiopathic intracranial hypertension". AJR Am J Roentgenol. 202 (3): 608–13. doi:10.2214/AJR.13.10874. PMC 4041691. PMID 24555598.
- ↑ Kelly LP, Saindane AM, Bruce BB, Ridha MA, Riggeal BD, Newman NJ, Biousse V (August 2013). "Does bilateral transverse cerebral venous sinus stenosis exist in patients without increased intracranial pressure?". Clin Neurol Neurosurg. 115 (8): 1215–9. doi:10.1016/j.clineuro.2012.11.004. PMC 3610812. PMID 23219404.