Hi,
I have two annies. One was a brain aneursym clipped in March and I'm getting a second opinion on the second. I was told it was in a spot too risky to do surgery on. I can tell you that if left untreated and it ruptured it would be a bad thing. Please look at a link I found on PICAs:
http://www.daviddarling.info/encyclo.../aneurysm.html
Good luck to you. The wait between diagnosis and surgery makes you crazy! Please ask your surgeon about the risks and benefits. Get specifiics! I recommend making a list. Take some one else with you if possible. My mind started to go blank under the stress. Get a second opinion if your unsure. Good luck. Do a follow up posting to say how things are going.
Sarah