I am so very sorry for the diagnosis. Cancer sucks.
This thread may help you, if you want to find some things to support your girl.
I would have also had them aspirated, because it's helpful to know what you are dealing with. In the thread above, this is a boxer, prone to MCT, so it was a pretty good diagnosis, even without an aspirate. In Boxers, they also grow slower.
I'm liking quercitin and curcumin for MCT as a start.