Two days ago I came home from work and found my 18 year old minature poodle (who is housed in the garage while I am at work) with a bump on the bridge of his nose. He also has a small wart on it and it was bleeding. (It was not bleeding before I left for work). I thought that he must have bumped himself, but the bump has not gotten any better or any worse. My husband thought that perhaps a spider bite him. It does not bother him at all if I touch the bump. He shows no outwards signs that anything new is bothering him. Any ideas of what it could be?