I spoke with Spencer's vet. Thankfully, the biopsy showed no cancer cells. However, the liver cells were "swollen & abnormal." The problem is, they don't know why. Honestly, the vet gave me so much information and "possibilities", I can't remember all she said. But, before the biopsy, she mentioned Cushings Disease because Spencer had a couple symptoms, but at the time, she felt the likelihood of lymphoma was greater. Now, she wants to investigate the Cushings. She said they can do a urine test to determine the amount of creatine he was putting out. That would indicate the possibity or not of Cushings & if there, then next step would be blood tests. I did a little reading about Cushings & the only symptoms of it that he has is the excessive drinking & urinating. The vet agreed he doesn't have all the "classic" symptoms, but because they are at a loss for what the problem is, she feels investigating it is worthwhile. I'm happy it's not cancer, but frustrated at no answer. Any info on experiences with Cushings would be appreciated. Thanks.