What Happened to Luke Skywalker's Hand when it was Chopped off by Darth Vader.?

in The Empire Strikes Back, the Lightsaber duel at the end of the movie luke fights darth vader. in the end he finds out he is not a anymore as well as his Relaxation hand got cut off. (right hand) i just wanna know where did that hand go? i mean did someone pick it up and clone luke with it? or perhaps gave it to their rancor as a chew toy? i am actually interested, not a joke. although that sounds funny since i want you to take a question like this serious givin its content. yeah just wanna know.