In December 2016, doctors at Angers University Hospital in France encountered an extremely rare pregnancy

 In December 2016, doctors at Angers University Hospital in France encountered an extremely rare pregnancy complication during a routine 22-week ultrasound. A 33-year-old woman had developed a 2.5-centimeter tear in her uterine wall, through which her baby's legs and a large amount of amniotic fluid had escaped.

The herniated amniotic sac measured 19 by 12 by 9 centimeters, with the baby's legs protruding up to just above the knees. 

This was only the 26th documented case of this complication in medical history. The likely cause was the woman's history of five previous caesarean sections, which had weakened areas around the uterus.

Two months later, at 30 weeks, another ultrasound showed the tear had doubled to 5 centimeters, with the baby's abdomen now protruding as well. Doctors performed an emergency C-section, delivering a healthy 1.385-kilogram baby boy. 

The mother was discharged after five days, and six months later, both mother and baby were healthy and doing well.