This might not be tasteful for the squeamish...
I know not everyone would consider wisdom teeth, appendixes, and tonsils as too animal-like, but the medical community over the past few years has counted them all as trivial at some point or another.
What body parts have you had removed? I've had my appendix and wisdom teeth removed, along with a pilonidal cyst or something on my tailbone under the skin that was solid and had a bunch of hair on it. My family jokes around saying I had my tail docked
Ironically, that surgery caused a bunch more cysts to pop up, only these aren't solid like the first and aren't hairy.