Neoplastic meningitis MRI: Difference between revisions

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Revision as of 21:13, 19 January 2016

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


MRI component	Findings

T1	Usually normal
T2	Usually normal
T1 with contrast	Leptomeningeal enhancement scattered over the brain in a 'sugar coated' manner
Fluid-attenuated inversion recovery (FLAIR)	Abnormally elevated signal within sulci

↑ Radiographic features of leptomeningeal metastases. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/leptomeningeal-metastases. Accessed on January 19, 2016

@@ Line 7: / Line 7: @@
 ==MRI==
 *Brain MRI is helpful in the diagnosis of neoplastic meningitis.
-*On MRI, neoplastic meningitis is characterized by:
+*On MRI, neoplastic meningitis is characterized by:<ref name=eaturesradiographicfneomeningitis1>Radiographic features of leptomeningeal metastases. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/leptomeningeal-metastases. Accessed on January 19, 2016</ref>
 {| style="border: 0px; font-size: 90%; margin: 3px; width:1000px"
@@ Line 18: / Line 18: @@
 T1
 | style="padding: 5px 5px; background: #F5F5F5;" |
-*Iso- to hypointense compared to adjacent brain
+*Usually normal
 |-
 | style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" align=center|
 T2
 | style="padding: 5px 5px; background: #F5F5F5;" |
-*Iso- to hyperintense
+*Usually normal
-*Small flow-voids may be observed within the tumor
 |-
 | style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" align=center|
 T1 with contrast
 | style="padding: 5px 5px; background: #F5F5F5;" |
-*Marked homogenous enhancement
+*Leptomeningeal enhancement scattered over the brain in a 'sugar coated' manner
+|-
+| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" align=center|
+Fluid-attenuated inversion recovery<br>(FLAIR)
+| style="padding: 5px 5px; background: #F5F5F5;" |
+*Abnormally elevated signal within sulci
 |}
 ==References==