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Lithopedion, also known as stone baby fetal rock is a rare case when a child dies in the mothers womb & isnt reabsorbed, instead the fetus is mummified and calcified.
Lithopedion is caused because of an ectopic pregnancy which is when a fertilized egg is implanted outside of the uterus and therefore develops within the abdominal cavity
After the fetus' blood flow is stopped the baby dies & the stage of lithopedian begins, this is when the baby shrinks and is mummified.
(1) lithocelyphos, (2) lithocelphopedion, and (3) lithopedion. Lithocelyphos is when the fetus is mummified and the extra-embryonic membranes are calcified. Lithocelphopedion is when the fetus is attached to certain points of the extra-embryonic membranes and these points are subject to calcify, while everything else is mummified. Lithopedion, is when the extra-embryonic membranes rupture releasing the fetus into the abdominal cavity where it is calcified by lime salts.
Doctors dont know too much about this, they know it is caused by the baby going to the wrong place when it is fertilized, but this phenomenon is so rare that it has barely been studied.
- there are only 300 known cases of stone baby in the world.
The chance of abdominal pregnancy is one in 11,000 pregnancies
-only between 1.5 and 1.8% of abdominal pregnancies develop into lithopedia
-Women often dont know they have this untill several years later
-The Longest case of a woman having a lithopedian child is around 60 years