NeuroradiologyEdema versus tumor
Associated edema (images 1 and 3) is seen as low signal intensity areas on T1WI (image 7) and is visualized more clearly on T2WI (image 2) as high signal areas. However, in certain cases it may be difficult to differentiate edema from tumoral infiltration (image 4). Edema is most extensive in hemangioblastomas. It is seen in 60% of all ependymomas (image 5) and only in 23% of astrocytomas (image 6).
The ESNR CD-Rom Series
To view high resolution images,
please register first.
Click
here
to register.
Already registered? Enter your e-mail in the window below.Re-registerImage 6
 | |  | |  |
Edema versus tumor, Image 6 | | Edema versus tumor, Image 1 | | Edema versus tumor, Image 2 |
 | |  | |  |
Edema versus tumor, Image 3 | | Edema versus tumor, Image 4 | | Edema versus tumor, Image 5 |
 | |
Edema versus tumor, Image 7 | |