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Image c: Epidural lesion, look to the column of CSF near the lesion, you will find it narrowed with compression of the cord.
How to differentiate between three types of dural lesions
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| Grey shadow = CSF space which is present between dura and edge of the spinal cord(between double line and black line).White shadow=Spinal cord with black lines representing its limits.External double lines = Dura |
Image c: Epidural lesion, look to the column of CSF near the lesion, you will find it narrowed with compression of the cord.
Image b: Sub dural lesion, look to the CSF column near the lesion, you will find it widened with compression of the cord.
Image a: Intra medullary lesion, look to the CSF column near the lesion, you will find it narrowed with expansion of the cord.
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