Thanks Pam.  I took him in this morning to repeat the platelet count.  I've never found a tick on him so that pretty much would eliminate that.  And on chemo, his last chlorambucil capsule was a week before the surgery so actually that would have been about mid-Sept and he never had any IV chemo.  Hemangio of the spleen is what I am most concerned about.  He did have two small spots on his spleen when they did the ultrasound in June but the oncologist was not concerned about these feeling they were probably age-related and the lung tumors took center stage.  I know how fast hemangio sneaks up since my first golden died from this, but he was more lethargic and Harley has absolutely no symptoms of anything right now.  In fact since he had the tumor on his leg debulked again, he is really doing well.  I'm just going to try to keep the running to a  minimum until I hear back from the oncologist next week.