My handsome devil
Simon Cat is home, and he's looking quite dapper.
The samples from his spleen show no sign of cancer (though we can't rule it out altogether), so the vet suspects an auto-immune problem of some sort.
The fabulous news is that his anemia has improved by three percentage points in the last day, he no longer has a fever, and he's acting like his old self. He has to take prednisone, antibiotics, Pepcid and possibly an appetite stimulant for a while, but he's a brave young lad and will adjust.
This amazing cat is OK (better than OK), at least for now, and I thank everyone for being so supportive and understanding.