Guess who's back from his followup CT scan!
The vet was astounded at how well everything is looking, the tumour isn't in full remission but there's been absolutely no change in it whatsoever since February which is great news. We're going to get a followup checkup in 8 weeks (not a full scan) to just do a bit of a poke and a prod to see how things are feeling, and then there probably won't be another scan for like 4-6 months assuming it seems like it's still stable.
Yay!