Baby girl born with 8-week-old twin fetuses inside her

A baby girl was born "pregnant" with twins. Yes, you read that right. According to a news report, the baby girl from Hong Kong had to have an operation to remove the fetuses from inside her body.

A baby girl appeared to have a growth of some kind in her left side, but doctors soon discovered the growth contained what could be "absorbed" siblings. The twins, which were around 8 to 10 weeks gestation, had legs, arms, a spine, rib cage, and intestines.

Both of the twins were already covered in skin. One weighed 14.2g and the other 9.3g - and each had an umbilical cord, according to the report.

Dr Yu Kai-man, a specialist in obstetrics and gynaecology, told the Hong Kong Medical Journal: "It was almost impossible to detect during the prenatal check-up as the embryo inside the baby was too small."

Yu, a former professor at the Chinese University of Hong Kong, added: "Since it is impossible for the little girl to have conceived the pregnancy on her own, the fertilisation of the twin foetuses, of course, belongs to her parents, which has gone to the wrong place."

The condition, known as foetus in foetu, occurs in just one in 500,000 births in the world. Fewer than 200 cases have ever been reported.

The birth was reported in the Hong Kong Medical Journal which suggested it was possibly linked to the mother having multiple abortions.