Hi YL...sorry you are going through this. :(
I have no idea what would be meant by area, maybe someone else will have some insight.
As hard as it is right now, try to think of other things. Worrying won't change the outcome and no sense letting it eat you up when there is nothing you can do, but for what it's worth, we all agree that waiting is the hardest part of the process....it is easy to let your mind run away and to read a lot on the internet....try to not read too much either, keep it on a need to know basis for the moment. Easier said than done, I know...
As for how long one can live after surgery....dozens and dozens of years! It will depend of if it is cancer, if it has spread and how far. They may recommend further surgery, chemo and or radiation, but there are so many factors that go into that. I will be celebrating my 10 year anniversary in November right before turning 41. Others on here are longer survivors than me.
Hang in there, we'll help you get through this.