Ganglioglioma MRI
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American Roentgen Ray Society Images of Ganglioglioma MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]
Overview
On MRI brain, ganglioglioma is characterized by iso- to hypointense solid component on T1, variable contrast enhancement of solid component on T1 C+ (Gd), hyperintense solid component and variable signal in cystic component on T2, and calcification on T2 (GE/SWI).[1] On MRI scan of spinal cord, ganglioglioma is characterized by mixed signal intensity on T1-weighted images, high intensity on T2, patchy enhancement on T1 C+ (Gd), and calcification with low signal blooming on gradient echo.[2]
MRI
- 1. Brain MRI scan is helpful in the diagnosis of cerebral ganglioglioma. On MRI brain, it is characterized by:[1]
- T1
- Solid component iso- to hypointense
- T1 C+ (Gd)
- Solid component variable contrast enhancement
- T2
- 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 shows blooming signal loss
- 2. MRI scan of spinal cord is helpful in the diagnosis of spinal cord ganglioglioma. On MRI scan of spinal cord, it is characterized by:[2]
- T1
- Mixed signal intensity on T1-weighted images is due to the dual cellular elements of the tumor
- T2
- High intensity
- Surrounding edema is rare
- T1 C+ (Gd)
- Patchy enhancement
- Gradient echo
- Calcification is common, low signal with blooming
References
- ↑ 1.0 1.1 MRI findings of ganglioglioma. Dr Henry Knipe and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/ganglioglioma
- ↑ 2.0 2.1 MRI findings of spinal cord ganglioglioma. Dr Ayush Goel and Dr Sara Wein et al. Radiopaedia 2015. http://radiopaedia.org/articles/spinal-ganglioglioma