Hi Diana. My name is Brian and I'm 40 from michigan. I had an arachnoid cyst fenesterated over 3 years ago and 3 months after the surgery it didn't help my hydro so I had a vp shunt installed and have had lots of pressure problems daily that can't be fixed. Adjusting the shunt don't work for me and my ventricles are still very enlarged. I often wonder how I will get through the rest of my life like this. If you need someone to talk to you can talk to me, I also know my neurosurgeon in tampa florida has been doing arachnoid cysts and shunts for over 22 years.