I too have antorid cyst on my brain stem it is the size of a baseball and the pressure and pain and the black outs and the ringing in my ears and now all the see in straight lines. i hate feeling this way so the nuro said i had to have surgey but i have to give him and anwser in 7days when i go back in and im sacred do they shave your hair off all the way. how long is the surgey going to be can someone tell that i just want my life back and play with my 5 year old boy and have my husband not needing to take care of me.