@Mic80
It's probably more daunting than anything else as it is so foreign to your everyday, language and specialists and terminology we didn't have any need nor understanding of previously. The BCNA website itself is a wealth of information and I will put a couple of links here for you to explore and hopefully get a better understanding and maybe formulate questions for your team or even answer some of your questions.
Take care and best wishes and yes keep off google!
https://www.bcna.org.au/understanding-breast-cancer/treatment/surgeryhttps://www.bcna.org.au/understanding-breast-cancer/https://www.bcna.org.au/understanding-breast-cancer/types-of-breast-cancer/https://www.bcna.org.au/resource/fact-sheet-breast-cancer-pathology/