Hi Suzana,
I am sorry you are one of those unlucky ones, like all of us here, who were diagnosed with AN. I know how you feel! I went through that 5 - 6 yrs ago and it wasn't the best time in my life. this week is actually 5th ANniversary of my last surgery!
(I had three surgeries in the span of a year. I felt I couldn't get rid of it). Brain surgeries are the most expensive (to my knowledge), it makes sense because they deal with the most sensitive part of you - your brain, your computer, right?
The good thing is that you have discovered this forum that is full of useful information and members who are here for you.
I have a list of questions that might be a good starting point for you. I've forgotten how to attach files here though. If you someone knows, please let me know. Otherwise I will PM it to you. I found this list here on the forum, so I don't claim any copyright and if someone recognizes it, please do not get angry with me.
As for the cost - it depends on the coverage you have. I'm Bulgarian and my first two surgeries were done in Bulgaria where healthcare provision is heavily subsidized by the government. Despite its lower cost, the healthcare provision is not stellar and ANs are rare enough for Bulgarian doctors not to have enough experience performing such surgeries. As a result, I had to look for better specialists and I went to Germany where I had to pay on my own. The cost was outrageous but I was blessed to have my friends and colleagues chipped in.
In the States, I've heard from other members here, your surgery is covered by you insurance company. I am not well acquainted with how pre-surgery is processed here since I struggled with that condition before coming to the States 2 yrs ago. And I've been uninsurable ever my arrival. I hope that others can shed light on this matter.
Please do not panic, after all your tumor is benign. You can read around the forum for hundreds of successful stories and how people cope to live post-surgery.
Hang in here and stay positive.
Hrissy