We still do not know much more. The analysis of the fluid is back and they say they suspect a tumor. That's more or less what we knew before.
Trude the vet was here this afternoon and gave Tigris another pred shot. He is quite happy, jumped on the table to greet her and did the same for me when I came home. At least he is not in pain and feels good.
The vet says only FIP, or the heart (which is already excluded) or a tumor could be the cause of that fluid ... All three of us are very glad that Tigris is in such good shape although we cannot explain it. I tend to think it is Pet Talk prayers.
So it's a CT on Monday. Siegmar and Trude will drive Tigris to the clinic and then we should know more. Tomorrow it's another pred injection.
Thank you for all your support. It's more appreciated than I can tell.