Thanks for all your prayers; they worked. Today the vet called and left a message on my answering machine. Neena's mammary tumor was benign. That is really good news. I started weeping and realized I had taken the possibilty of her tumor having metastasized very hard. My son and I are very happy. Now I can go ahead and get a car seat for her and really plan on her being around for a while. Yippie!