No tumor, visible kidney issue or sign of impaction. She's going to treat for parasites because those tests can be inaccurate and to lay off some of the harder exoskeleton worms, just to rule out that he isn't chewing food enough and it causing injury on the way out. To me, it looks like he may have smaller teeth than Novas so that may be the issue.
So not necessarily good news but not necessarily bad news. She said give it two weeks and if he's still bleeding, they'll move onto the more expensive/pain in the ass tests. She said it could be adeno/adrenovirus but if it's that, and he's showing symptoms, there isn't much they can do for him.
But she said he was real alert amd healthy looking so she's a little stumped as to why there's so much possible blood and that be the only symptom.