My dad was diagnosed with Pancreatic cancer about 4 years ago I think.
He had the Whipple procedure and just in the nick of time – another day and he wouldn’t have been strong enough.
Doing the op they found that it was terminal, but the procedure would give him longer. It’s a major op so recovery time reflects this. Thankfully he was quite a fit bloke so did well.
Without the op he would have had weeks. With it he was given 8-12 months. He lasted 22 and we had some really nice times together.
The fact that the surgeon says it went well is good news as thy tend to be straightforward these days. Fingers crossed for you sister.