Gliomatosis cerebri MRI: Difference between revisions

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{{Gliomatosis cerebri}}
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==Overview==
==Overview==


==MRI==
==MRI==
*Head MRI may be the most important test for the diagnosis of gliomatosis cerebri. An MRI uses magnetic fields but which is a different imaging type from computed tomography (CT) to produce detailed images of the body. Like computed tomography (CT), a contrast agent may be injected into a patient’s vein to create a better picture. MRI scan takes longer time than CT scan.
 
 
Brain MRI is helpful in the diagnosis of gliomatosis cerebri. On brain MRI, gliomatosis cerebri is characterized by:<ref name=aaa>Radiographic features of gliomatosis cerebri. Dr Henry Knipe and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/gliomatosis-cerebri</ref>
 
{| style="border: 0px; font-size: 90%; margin: 3px; width: 600px" align=center
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! style="background: #4479BA; width: 200px;" | {{fontcolor|#FFF|MRI component}}
! style="background: #4479BA; width: 400px;" | {{fontcolor|#FFF|Findings}}
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| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |
T1
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:iso to hypointense to grey matter
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" |
T2
| style="padding: 5px 5px; background: #F5F5F5;" |
:hyperintense to grey matter
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" |
T1C+
| style="padding: 5px 5px; background: #F5F5F5;" |
:No or minimal enhancement
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" |
DWI
| style="padding: 5px 5px; background: #F5F5F5;" |
:No restriction
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" |
MR spectroscopy
| style="padding: 5px 5px; background: #F5F5F5;" |
:E​levated [[choline]]/[[creatine]] and [[choline]]/NAA ratios
:Marked elevation of myo-inositol
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" |
MR perfusion
| style="padding: 5px 5px; background: #F5F5F5;" |
:​Low/normal rCBV
:*Correlates with no vascular hyperplasia
|}


==References==
==References==

Revision as of 20:31, 24 September 2015

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Overview

MRI

Brain MRI is helpful in the diagnosis of gliomatosis cerebri. On brain MRI, gliomatosis cerebri is characterized by:[1]

MRI component Findings

T1

iso to hypointense to grey matter

T2

hyperintense to grey matter

T1C+

No or minimal enhancement

DWI

No restriction

MR spectroscopy

E​levated choline/creatine and choline/NAA ratios
Marked elevation of myo-inositol

MR perfusion

​Low/normal rCBV
  • Correlates with no vascular hyperplasia

References

  1. Radiographic features of gliomatosis cerebri. Dr Henry Knipe and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/gliomatosis-cerebri


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