Doctors in Peru have found a "parasitic twin" in the stomach of a three-year-old boy, and plan to surgically remove the tissue.
Dr Carlos Astocondor of the medical team at Las Mercedes Hospital in the northern port of Chiclayo said the condition occurs in about one of every 500,000 live births.
He said the partially formed foetus, in the stomach of Isbac Pacunda, weighed 700 grams and was 25 centimetres long.
Astocondor said the brain, heart, lungs and intestines never developed after the foetus was absorbed by the other foetus inside the mother's womb.
He said it had some hair on the cranium, eyes and some bones.
PA
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