I'm hoping someone else here with AI/Vet experience might see this post and give an opinion. I was AIing a 3+yo dairy cow this week and there was a mass (that is not found in all my other 100's of breedings). I had come across this once before in a beef cow. Immediately upon rectal palpation/cleaning out for breeding I felt a mass straight ahead, which I describe as the size of a Jr. football. I can't say it was exactly round like a basketball because I only felt one "side" of it. The complete reproductive tract lay below it and I did get through to breed her. I can't believe that it was an organ/part of the stomach. I believe it is a growth. She's not a large cow and they purchased her from a farmer with 15 cows, they told me. They couldn't tell me exactly what her breed is, probably Brown Swiss or Guernsey cross. She's had one calf and was milking when they bought her and was to already be bred back. So, they stopped milking when the guy told them and waited and no calf. I don't know that a tumor would keep her from breeding, but if it is that then they need to move her out now. I have suggested they have a vet palpate her for pregnancy at which time the vet should be able to tell them if it is a tumor. FIL said that once he had a cow with a tumor that the vet said was because of an "infection" of the umbilical cord that kept growing from birth. This doesn't seem the right location for such a thing, though. What do y'all think?