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{{Meningioma}}
{{Meningioma}}
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==Overview==
==Overview==
Meningiomas are readily visualized with contrast [[CT]], [[MRI]] with gadolinium, and arteriography, all attributed to the fact that meningiomas are extra axial and vascularized. CSF protein is usually elevated if [[lumbar puncture]] is attempted.
Head [[CT scan]] may be diagnostic of meningioma. Some of the findings on [[Computed tomography|CT scan]] suggestive of meningioma include edema, [[CSF]] attenuation [[cleft]], round/elongated extraaxial mass, and [[hyperostosis]] of the adjacent [[skull]]. Although [[Magnetic resonance imaging|MRI]] is the diagnostic study of choice, [[Computed tomography|CT]] is easier to use and may be used in cases where there is a contraindication to the use of an [[Magnetic resonance imaging|MRI]].


'''Patient #1: 95 y/o female with a large intraventricular memingioma'''
==CT Scan==
<gallery>
Image:


Intraventricular meningioma 001.jpg|CT scout
Head [[Computed tomography|CT scan]] may be helpful in the diagnosis of meningioma. Findings on [[Computed tomography|CT scan]] suggestive of/diagnostic of meningioma include:<ref name="pmid20809250">{{cite journal| author=Saloner D, Uzelac A, Hetts S, Martin A, Dillon W| title=Modern meningioma imaging techniques. | journal=J Neurooncol | year= 2010 | volume= 99 | issue= 3 | pages= 333-40 | pmid=20809250 | doi=10.1007/s11060-010-0367-6 | pmc=2945460 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=20809250  }} </ref><ref name="pmid12087202">{{cite journal| author=Yu KB, Lim MK, Kim HJ, Suh CH, Park HC, Kim EY et al.| title=Clear-cell meningioma: CT and MR imaging findings in two cases involving the spinal canal and cerebellopontine angle. | journal=Korean J Radiol | year= 2002 | volume= 3 | issue= 2 | pages= 125-9 | pmid=12087202 | doi=10.3348/kjr.2002.3.2.125 | pmc=2713835 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12087202  }} </ref>
*Round or elongated extraaxial [[mass]]
*Mass with broad attachment to the [[dura]]
*Isodense mass. Can often be hyperdense or slightly hypodense compared to the cerebrum
*[[CSF]] attenuation [[cleft]]
*[[Tumor]] intense enhancement
*[[Homogeneous]] mass that can show [[Heterogeneous|heterogeneity]] depending on the presence of fat, calcium, or [[tumor]] [[necrosis]]
*[[Hyperostosis]] of adjacent [[skull]] in [[benign]] meningiomas
*[[Edema]]
*Mixed solid and [[cystic]] mass in clear cell meningiomas


Image:
Despite [[Magnetic resonance imaging|MRI]] being the imaging study of choice, [[Computed tomography|CT]] is more widely available, better in urgent settings, and used when patients have a contraindication to [[Magnetic resonance imaging|MRI]] usage such as [[Pacemakers and implantable defibrillators (patient information)|pacemakers]].
Intraventricular meningioma 002.jpg|CT scoutImage:
Intraventricular meningioma 003.jpgImage:


Intraventricular meningioma 004.jpg
==Gallery==
 
[[File:Atypical-meningioma-5.jpg|400px|thumb|left|CT scan showing atypical meningioma [https://radiopaedia.org/articles/meningioma?lang=us source:Case courtesy of Dr Bruno Di Muzio, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. ]]]
</gallery>
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'''Patient #2'''
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'''Patient #3: Biopsy revealed atypical menigiomas'''
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==References==
==References==
{{reflist|2}}
{{reflist|1}}


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Latest revision as of 14:37, 10 September 2019

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ifeoma Odukwe, M.D. [2] Haytham Allaham, M.D. [3]

Overview

Head CT scan may be diagnostic of meningioma. Some of the findings on CT scan suggestive of meningioma include edema, CSF attenuation cleft, round/elongated extraaxial mass, and hyperostosis of the adjacent skull. Although MRI is the diagnostic study of choice, CT is easier to use and may be used in cases where there is a contraindication to the use of an MRI.

CT Scan

Head CT scan may be helpful in the diagnosis of meningioma. Findings on CT scan suggestive of/diagnostic of meningioma include:[1][2]

Despite MRI being the imaging study of choice, CT is more widely available, better in urgent settings, and used when patients have a contraindication to MRI usage such as pacemakers.

Gallery

CT scan showing atypical meningioma source:Case courtesy of Dr Bruno Di Muzio, <a href="https://radiopaedia.org/">Radiopaedia.org</a>.


References

  1. Saloner D, Uzelac A, Hetts S, Martin A, Dillon W (2010). "Modern meningioma imaging techniques". J Neurooncol. 99 (3): 333–40. doi:10.1007/s11060-010-0367-6. PMC 2945460. PMID 20809250.
  2. Yu KB, Lim MK, Kim HJ, Suh CH, Park HC, Kim EY; et al. (2002). "Clear-cell meningioma: CT and MR imaging findings in two cases involving the spinal canal and cerebellopontine angle". Korean J Radiol. 3 (2): 125–9. doi:10.3348/kjr.2002.3.2.125. PMC 2713835. PMID 12087202.


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