The case of “fetus-in-fetu” occurred at Assuta Medical Center in Ashod, Israel, according to The Times of Israel.
“We were surprised to discover that it was an embryo,” Omer Globus, director of neonatology at the hospital, told the newspaper.
Medical checks and ultrasound examinations of the mother already showed that the developing baby’s stomach was enlarged, and doctors later confirmed the unusual condition after the child was born, the report said.
After birth, the baby underwent ultrasound examinations and an X-ray, the Times reported.
Doctors ultimately removed two more formations from inside the baby, the report said.
The medical staff stressed that the embryo was only partially developed. They explained that such anomalies occur during the early stages of pregnancy, when an embryo might enter a space that exists during that early stage, then remain there and fail to fully develop.