Sorry I don't have any photos right now, but...
My new horse has a hard lump on her fetlock. We've no idea what caused it, as she is an adoption case, so no background history. It's small enough really, maybe half the size of a plum, on the front of her fetlock, near the joint. I pressed it, and gave it a few taps and it didnt bother her.
The farrier said it seemed to be an old injury, and said it isnt causing any pain and wont affect her.
While riding, she is perfectly fine, except every now and then, she will pick up that leg a bit higher than the other leg. She doesnt jerk or speed up/slow down, just lifts it higher. It does feel funny, but doesnt seem to be causing her pain so far as I can see.
I have only walked, trotted and done a small bit of canter on her so far, and it has only happened about two or three times in the 3 times I rode her.
Should I be worried about this?