If I am remembering things I've read properly, retrosigmoid is the same or similar as suboccipital :/? Anyway, I had suboccipital, at least that's what it said on my chart, like I said, if I'm remembering right (cause I usually don't). Anyway, what I'm getting to is that I didn't have any fat pulled to plug up the hole at the time of my initial surgery, but after a CSF leak was discovered, it was repaired through the mastoid bone with a fat plug from my belly and they definitely don't take enough fat out!!! I have the tiniest little scar on my belly from that repair and a second scar right behind my ear. They didn't go into the same incision in my head which was a bit farther back maybe because the AN was pressing on the brain stem. Not sure, but I have a few new questions for the doc if I can't find my copy of the report! I really just wanted the stupid thing outta my head and wasn't concerned as much as I should have been with the details :/