Hello D,
Hope the next couple of weeks of waiting go well for you. I have only just found this site today - I have just been diagnosed - 2.5cm roughly starting to push on my brain stem, facial numbness, hearing loss. Good times! I'm 31 and noticed the hearing problems a couple of years ago, but my GP wouldn't refer me to an ENT, then I went numb down the right side of my body and face all of a sudden in May this year - turns out there's a cyst inside my tumour and my consultant thinks it grew all of a sudden in May and hit my brain stem which caused the numbness to my body, and stretched out the nerve to my face at the same time. Face still numb, body calmed down. I had a one night stay in hospital to make sure I hadn't had a stroke or anything like that then they sent me off with a CT scan, a lumbar puncture and a ECG under my belt. I had an outpatient MRI a month later and then heard nothing for months and months. I'm in the UK and the way things usually work here is that if they don't find anything wrong, they don't tell you - they only tell you when something is awry. SO I thought (somewhat stupidly), that everything was fine and the numbness (I hadn't twigged that the numbness and hearing loss were related at that stage) was just one of those things. About a month ago I saw an article in the local paper about a woman with breast cancer who had a mammogram and never got her results - assumed she was fine, but lo and behold, 3 years later, she now has the cancer in her bones, is dying and the breast cancer can easily be seen on the original mammogram. So I thought, mmm, that's not very cool, I might chase up my MRI. So I did - and eventually, after trying to get through to several people at the hospital, talked to a lovely secretary in the Neurology department who dug out my records, told me the original doctor I saw back in May had left the hospital and no one thought to tell me my results. She got some advice from the neurologist and referred me to an ENT surgeon, who saw me, told me what was going on, referred me to a neurotologist (at a different hospital now...thank goodness!) and here I am! Sorry, that ended up being a bit of an epic, I just wanted to say hi! I'm scheduled for trans-lab surgery in February here in the UK with a fantastic surgeon who has over 1000 AN operations under his belt - this is my plan B, my surgeon is also writing to doctors in Australia (I am Australian) to see if someone fabulous over there can do it - he advises as I don't have anyone over here, it would be better to be recovering with my family around. So cross fingers someone will operate in Feb! But point being, you asked about closing up the hole - over here, the surgeon I've seen closes the gap using the uppermost layer of muscle from the leg as it is extremely strong apparently. I asked him why he doesn't use abdomen fat like lots of others seem to, but he said it isn't as good - for whatever reason. Anyway, they have a website with questions and answers which may help you before and after your surgery. Sounds like you have done an amazing amount of research, but just in case you need more answers:
http://www.addenbrookes.org.uk/serv/clin/surg/neurotol_skullbase/acoustic_faqs1.htmlHope it helps!