Colloid Cyst of Third ventricle - how small can they be removed safely?
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First of all I am sorry to hear about your situation, I feel that I can truly empathize with what you are going through. I am a survivor of a Colloid Cyst. At the age of 15, I was enduring similar symptoms; migraine headaches, passing out, nausea, and pain all over especially behind my eyes. There were days that I could not even get out of bed or stand up. These symptoms were off and on throughout the summer of 1991, but became increasingly worse later in the year. I finally went to the doctor to have it checked out, and after a CT scan and an MRI, I was also diagnosed with a Cyst in the Third Ventricle.
My doctor had recommended the CT scan after looking in my eyes and seeing that my optic nerve was swollen from some type of pressure behind my eyes. The CT scan showed severe hydrocephalus, and they said that it is the hydrocephalus which causes the sudden death.
I did not have much time to think about it, I was informed that the pressure had to be removed due to the threat of sudden death, the choice was either a inserting shunt to drain the fluid, or Brain surgery to remove the Cyst.
We opted for removal of the Cyst via surgery, and I spent most of the next day on the operating table.
I guess my situation was a little different, From the MRI they could see that my Cyst was already 11mm in size, and I had severe hydrocephalus, my ventricle was swollen to several times the normal size. You stated that your MRI doesn't show any hydrocephalus, and this may be the reason they have recommended waiting in your situation. That could be the reason they have recommended waiting and monitoring it.
After the surgery I suffered from temporary amnesia and then memory problems (mostly short term-memory) for several years. It has been a struggle at times, but I am now 30 years old with a wife and two children. Although I have small memory lapses at times, for the most part everything is functioning normally.
I don't know if this helps, but I wanted you to know that there are people who have been there, and know what you are going through. My thoughts and prayers will be with you.