My brother recently suffered with numbness on the right side of his face, he also experienced weakness in the right hand and right leg but quickly recovered. Now, even after 2-3 days his facial weakness still exists. He got the MRI scan done yesterday and the report indicates "Incidental finding of left pharyngeal mucosal space retention cyst." and rest is normal. He is also unable to close his right eye lid.
We are not sure what it means but the Neurologist confirmed it as Bell's Palsy, suggested him steriods and facial physiotherapy for a month.

Can you please analyse the attached MRI and help us by giving more details on what exactly this finding means and precautions to be taken to avoid re-occuring.

Thanks in advance !
CB

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