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I'm sorry to hear about this
The mild volume loss is due to a loss of fluid in the brain which has accumulated in the spinal cord
Have you had any injury or infection?
Have you had an MRI of your spinal cord?
And was there anything found like scar tissue or a tumor?
Okay, then I don't think you need to worry about a serious cause, it may be due to tissue attached to your spinal cord limiting its movement, the more serious causes seem to have been ruled out
You're quite welcome
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