Ganglioglioma MRI: Difference between revisions

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Revision as of 14:44, 4 September 2015

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

Brain MRI scan is helpful in the diagnosis of ganglioglioma. On MRI, it is characterized by:

:*Solid component iso- to hypointense

:*Solid component variable contrast enhancement

:*Hyperintense solid component

Variable signal in the cystic component(depending on amount of proteinaceous material or presence of blood products)
Peritumoral FLAIR/T2 edema is rare

T2* (GE/SWI) calcified areas (common) will show blooming signal loss

@@ Line 1: / Line 1: @@
 __NOTOC__
 {{Ganglioglioma}}
-{{CMG}}
+{{CMG}}{{AE}}{{SR}}
 ==Overview==
 ==MRI==
+Brain MRI scan is helpful in the diagnosis of ganglioglioma. On MRI, it is characterized by:
-* Gangliogliomas share imaging features with other low-grade [[neoplasm]]s.
+*'''T1'''
-* [[Calcification]] is a common finding.
+:*Solid component iso- to hypointense
-* Usually little or no associated mass effect or evidence of surrounding vasogenic edema.
+*'''T1 C+ (Gd)'''
-* Gangliogliomas have variable manifestations at nonenhanced CT and hypoattenuating mass is the most frequent manifestation.
+:*Solid component variable contrast enhancement
-* Remodeling of the [[skull]] may be seen if the neoplasm is located within the peripheral brain.
+*'''T2'''
-* MRI appearance of gangliogliomas is also variable and nonspecific.
+:*Hyperintense solid component
-* In general, the lesions are hypointense to isointense relative to gray matter on T1 weighted images and hyperintense relative to gray matter on T2 weighted images.
+:*Variable signal in the cystic component(depending on amount of proteinaceous material or presence of blood products)
-* The frequency of enhancement following intravenous administration of iodinated contrast media is variable (16%–80%) of gangliogliomas.
+:*Peritumoral FLAIR/T2 edema is rare
+T2* (GE/SWI)
+calcified areas (common) will show blooming signal loss
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