RickF: Just goes to prove that the processors of porcine leave nothing except the "oink". I guess everything is usuable and that is a good thing as it is not good to waste. This sorta goes along with why chitterlings and tripe is used.
I am just glad that from my personal choices will not include such delectable items.
RickF, you are a wealth of knowledge. You Google search well.
Paul E. Smith