: : My neurologist recently had an MRI scan performed on my brain as part of his investigation into several neurological problems I have including right sided numbness and l'hermittes sign. The MRI report noted small (<1mm) cysts lining the ventricles in my brain. My neurologist says this is wierd (among other things) and he is consulting with a neurosurgeon and an infectious disease specialist before he proceeds with any other testing. He does feel that a spinal tap is down the road.
: : Do you have any idea what the cause of the cysts could be? I have had a schwannoma removed from my T12 spinal nerve. I as felt at the time that this was an isolated tumor. I have also been previously tested for connective tissue diseases with negative results. Thanks for your help.
: Dear Susan,
: The cysts seen on your MRI were likely an incidental finding, given the symptoms you describe. Problems from a cysts in the ventricular system would likely be related to hydrocephalus, namely intermittent headaches, nausea and/or vomiting and lethargy. The particular cyst you have depends on its particular characteristics on MRI. Yours is likely a benign cyst, though a surgeon should look at the MRI for evidence of any more serious issues that need to be addressed. The schwannoma you previously had removed in your back was likely a separate entity and not related.
: The key for you is to be sure that this is a benign entity and that you are not having symptoms from intermittent hydrocephalus. Speak to the neurosurgeon in this regard for his opinion.
: Good luck.
To the Dr.
I just wanted to be sure that you understood that there were many cysts, not just one. They line the walls of my brain ventricles. I have read about particular cysts, i.e. singular cysts which can block the flow of CSF, however, the number of cysts is what is disconcerting to me. I am following up with a neurosurgeon and will make further moves based on his assessment. I just wondered whether you had seen anything like this before. Thanks.
No, I have not seen multiple intraventriclar cysts such as you describe. A
concern regarding hydrocephalus or the potential for hydrocephalus still remains,
though. We'd be interested to see what comes of your situation.
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