one wouldn't intuitively think that a ragged piece of lead floating around in there would be particularly healthy.
i'm wondering what, if any, kind of id can be accomplished via xray or other external device.
i'd imagine they might be able to estimate caliber, but not much more than that ...
An addenda to my earlier anecdote: my friend was told that the body would encase the foreign body in scar tissue and it wouldn't move around.