Lithopedion

Lithopedion (litho = stone; pedion = child) is the name given to an extra-uterine pregnancy that evolves to fetal death and calcification . It is a rare phenomenon that mostly comes from an abdominal pregnancy. The incidence of abdominal pregnancy is 1:11,000 pregnancies and lithopedion occurs in 1.5 to 1.8% of these cases.1,3  There have been less than 300 cases in 400 years of world medical literature .2,3 On the other hand, the occurrence of abdominal pregnancy and lithopedion has tended to become even rarer due to medical and pre-natal care becoming more accessible to the population, with the possibility of early diagnosis and treatment of the pathology.