I noticed the day before yesterday that my Houdini was standing oddly. When I looked at his rear end, I saw a large protrusion seemingly to come from the anal area. A milky discharge was present when I rinsed the area with warm water. I panicked and got an appointment yesterday with the vet. She thinks is a tumor and she has never seen something like that in her decades as a vet. It is not in the anus, as she was able to see it on the side of the mass. She just suggested to keep in him as comfortable as possible until, he dies I guess. Or i PTS. He is 12 yrs old and in pretty good health otherwise, with some arthritis. I am getting a second opinion anyway. Maybe take a picture and email to specialized hospitals. Maybe to decrease the size at least, with laser surgery. Anyone knows of super vets or hospitals? I am not ready to say bye yet. Also, I forgot to ask for antibiotics in case the milky discharge is pus. Can't call until tomorrow. Is the cecum known to produce a milky substance? I wonder if it is normal. I have a penicillin syringe in the fridge that is a few months old I was thinking I could use, since i did not use it because I was having a hard time injecting IM. I don't think it is toxic, just not as potent. Any thoughts?