Hi, Anne. I went to the Cornell Vet School site, and to get any info from them I have to pay a large fee for research time. yikes! Is there someone you know who I can email directly? My big dog has been energetic and playful lately, and the excess water drinking has calmed down. I think maybe I am scrutinizing him too closely and looking for problems that aren't there. He has a vet appointment on Saturday, and the vet will be very happy to run lots of tests that will be very expensive, if I want her to do so. The cost is scary. Very scary. The vet expects me to jump right in and do ALL THAT WE CAN DO. And I just can't. I have a sense that my dog has tumors inside, but the only way to tell is an ultrasound or x-rays. sigh. So, I don't know what to do about this. If money were not an issue, I'd say go ahead and test away. But it IS an issue. I'm torn between doing what I know SHOULD be done, and doing what I CAN do. For instance, I know it's better for my dogs if I cook their food, but I just can't do that anymore. And I know the commercially prepared raw food is also very good for them, but it makes me gag to handle it. So, they are getting very high end canned and dry food. And they seem happy with it. They eat better than many people do. Anyway, I think what I need is an objective medical viewpoint of this cancer and what to expect and what to do or not do. Any help would be greatly appreciated!! Peace, Beth.