How maddening ! She deserves whatever sanctions you can load onto her. It's probably worth having a chat to the BCNA team about how you can start some sort of effective complaints process--they might (or might not) have some advice. I think a letter to the Clinical Oncology Society of Australia would be in order at the very least. Unfortunately--from my personal experience--they tend to close ranks quickly to protect their own, but you have very legitimate grounds to demand some sort of action--the liver spot is a concrete 'thing' that can not be ignored and should not have been missed.
Good luck with the new drugs. The cost is crippling but I guess you've got to do whatever you can. With any luck your new team can find a way to ether get you onto some sort of trial or advocate for subsidised access. MXX