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Did the MRI show anything at the L5 or S1 level?
Did the EMG show anything concerning L5 or S1?
OK, the EMG report does suggest "nerve damage" to some of the nerves that go to the right leg.
But the muscles affected could be related to an issue at the L4, L5, or S1 level in the lumbar spine. I would want to make sure that there is nothing on the MRI report that suggests a "pinched" nerve at the L4, L5 or S1 level before writing this off to lumbosacral plexopathy.
Because if it is plexopathy -- there really is no good treatment for this, as that represents damage to the nerves.
Neuropathic pain medications like gabapentin, Cymbalta can be helpful.
Well, the EMG did not test the left leg, and if you have new symptoms into the left foot, it may be helpful to consider repeating MRI of the lumbar spine.
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That could be an issue with the S1 nerve there.
Well, it might be worth repeating the MRI to make sure nothing has happened to the L5-S1 level in the past 2 years.
If there is inflammation of the S1 nerve -- then the epidural steroids can help with this inflammation, and help with the pain.
No it would not show radiation damage.
There could be damage anywhere along the nerve.
That would be with the EMG and MRI scans, as well as your symptoms.
But issues with internal injury to the nerve (like with radiation damage) may be difficult to pinpoint.
Yes, a neurologist.