You may have to repeat MRI scan
1. Few causes of swelling of trigeminal nerve
a. Ischemia (eg, brain or spinal cord
b. Demyelinating disorders
c. Nerve compression (eg, by tumors or a herniated disk
d. Metabolic disorders (eg, diabetes, thiamine or vitamin B12 deficiency
e. Immune-mediated disorders
f. Degenerative disorders (eg, hereditary neuropathies)
2. In a neuropathic condition or edema of the nerves, the initial treatment is with steroids along with treatment of the cause. Oral prednisolone
is the commonest steroid prescribed.
3. MRI and CT scan of the brain both are required to diagnose the cause. Hence, repeat MRI scan is required to compare with the previous scan to look for any pathology.
4. If no significant abnormalities are noted in these scans; it will be presumed to be of idiopathic in origin and treated with steroids accordingly.
Hope this information was beneficial to you.
Dr. Naveen Kumar N.
ENT and Head & Neck Surgeon