Suggestion for those who are suffering from kidney stones

It looks like Cullen has kidney stones. We spent a large part of the day at doctor and radiology offices trying to get at the cause of his awful left flank pain. His pediatrician says the worst is yet to come as the stones move from the kidneys out.

I suggested that rather than suffer through that pain he just go ahead and donate the kidney and make it someone else's problem.

Chris found this picture, which is of a large staghorn kidney stone. Doesn't it look horrifying?