Kidney stones normally vary in size from that of a grain of sand to the size of a golf ball, but doctors in Hungary have just removed a 2.5 kilo, 17 centimetre, whopper from Sandor Sarkadi.
Sarkadi underwent an abdominal operation in Debrecen, 150 miles east of Budapest, after doctors discovered he had a kidney stone inside him that was 17 centimetres in diameter.
Most kidney stones pass through the body of their own accord within hours, or maybe a few days, doctors advising patients to drink a lot of fluids to help this process. Larger ones, probably fortunately, have to be surgically removed. Imagine trying to pass something that size….