A TWO-year-old boy in China has had surgery to "give birth" to his twin brother.
Xiao Feng, from Huaxi, China was taken to hospital when his stomach became enlarged and he was having trouble breathing.
Doctors ordered X-Rays and MRI scans, which revealed Feng was carrying his parasitic twin brother's foetus inside his stomach.
The boy was rushed into emergency surgery, where he was forced to "give birth", as doctors removed the dead twin foetus.
The case, known as cryptodidymus, or conjoined twins, is extremely rare, if not unprecedented in the world of medicine, news site Inquistr reported today.
The foetus was 20cm wide and had developed a spine, fingers and toes. It had grown so much that it was taking up almost two-thirds of the boy's stomach, doctors said.
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