Oh Nomilynn, I'm so sorry. I looked up Feline Chylothorax, and it seems it can either be something really serious or something easily treated, depending on how they got it and how long they had it. Let's hope and pray that she has the treatable type. Please don't think beyond to the "final decision" just yet - you need to keep good energies directed to little Bassett. Don't forget to kiss your other kitties, too - they probably miss their "sister" as much as you do. {{{{{{{Hugs and hope}}}}}}}}}