It was diagnosed a couple of months ago after we had taken him to the vet after he suffered a mild stroke. She felt his stomach and said she could feel a mass...She explained that if they operated and it was his liver they wouldnt bring him round. Or, she said it could be his spleen, but she didnt know if he would make it through the op..In himself he is fine, alert, eating and drinking. But now he has started to lose weight, and I dont know how long it will be before we have to make that dreadful decision to let him go..I cry everyday in anticipation of it. I look at him and hold him and cant believe this has happened. I feel guilty that I havent done enough in the way of treatment. Should I risk him having the op to see if its the spleen or leave him and just make the most of the time he has left? I'm at a loss..Zack is 10 BTW.