An 82-year-old Colombian woman sought medical attention, recently, complaining of severe abdominal pains. An x-ray revealed, though, that the woman's pain was caused by a lithopedion. Also called stone babies, lithopedia are fetuses that implant themselves outside of the uterus and are too big to be reabsorbed by the body. Essentially, the fetus then goes through a mummification process and becomes calcified, hence the "stone baby" terminology.