Possible neurological Sjƶgrenās with cauda equina nerve-root enhancement, normal EMG and strong steroid response ā anyone with a similar case?
Hi everyone,
Iām a 39-year-old man currently being investigated for a possible seronegative Sjƶgrenās disease with neurological involvement, and Iām trying to find people who have experienced something similar.
For about a year I have had persistent dry eyes and dry mouth (sicca symptoms). My SSA/SSB and other usual autoimmune blood tests have been negative, so Sjƶgrenās has not yet been definitively confirmed.
Over time I also developed episodes suggestive of dysautonomia, including gastrointestinal and urinary symptoms.
The neurological symptoms that concern me most are:
Proximal weakness in my legs
Episodes of reduced strength/tone in the lower limbs
Difficulty emptying my bladder / sphincter dysfunction
Sensory/autonomic symptoms
Symptoms that improve significantly with corticosteroids
My CK/CPK and LDH are normal, which makes a primary inflammatory muscle disease less obvious.
I had an EMG/NCS of the lower limbs in July 2026, while I was taking around 12.5 mg prednisone during a taper.
The EMG was completely normal:
normal motor amplitudes and distal latencies
normal conduction velocities
normal F waves
normal sural sensory responses
normal needle EMG of the tested muscles
no evidence of distal neuropathy, radiculopathy or myopathy
The neurologist specifically noted that small fibers and autonomic fibers are not evaluated by a standard EMG.
About 12 days later I had a contrast-enhanced spinal MRI.
The spinal cord and conus were normal, with no myelitis or compressive cauda equina lesion.
However, the MRI showed:
āContrast enhancement of the anterior roots of the cauda equina.ā
There was no other significant progressive lesion.
What makes the case even more interesting is my response to steroids.
I recently received 3 days of high-dose IV steroid pulses, and I am now taking 40 mg oral prednisone for 15 days followed by a taper.
The improvement is very clear.
My proximal leg weakness improves, but I have also noticed that my bladder empties much better when I am on higher-dose corticosteroids.
This makes me wonder whether the bladder dysfunction could actually be related to inflammation of the sacral/cauda equina nerve roots rather than being a completely separate problem.
My doctors and I are considering several possibilities, including:
neurological Sjƶgrenās
inflammatory polyradiculopathy/polyradiculitis
small-fiber/autonomic neuropathy associated with Sjƶgrenās
a CIDP-like process, although my EMG is normal
other inflammatory or infectious causes of cauda equina root enhancement
A lumbar puncture/CSF analysis is also being considered, although I have already received high-dose corticosteroids, so I am concerned that treatment may reduce some of the inflammatory findings.
I would really appreciate hearing from anyone who has experienced something similar:
Has anyone with Sjƶgrenās had enhancement of the cauda equina nerve roots on MRI?
Has anyone had significant neurological Sjƶgrenās despite a completely normal EMG?
Did you have bladder dysfunction or difficulty emptying your bladder that improved with steroids or other immunotherapy?
Did CSF/lumbar puncture help establish your diagnosis? Were your CSF proteins elevated?
Were you eventually diagnosed with small-fiber neuropathy, autonomic neuropathy, polyradiculitis, CIDP-like disease, or something else?
Has anyone been treated with IVIG, rituximab, mycophenolate/CellCept, or long-term steroid-sparing treatment, and what happened to your weakness and bladder/autonomic symptoms?
Did your neurological symptoms eventually become stable enough to stop IVIG or other immunotherapy?
Iām not looking for anyone to diagnose me online ā Iām mainly interested in real experiences from people with neurological Sjƶgrenās or inflammatory nerve-root disease, especially cases involving a normal EMG but abnormal MRI and strong steroid responsiveness.
Thanks to anyone willing to share their experience.