Isbac's "parasitic win," according to doctors in Peru, has eyes, bones, and hair on his head, but it has no brain, lungs, hair or intestines. It weighs a pound-and-half (700 grams) and is nine inches (25 centimeters) long.
reports that Dr. Carlos Astocondor of the medical team at Las Mercedes Hospital in the northern port of Chiclayo, said the condition occurs in one of every 500,000 live births, and it is called fetus-in-fetu
There have been other reported cases of fetus-in-fetu
in recent times. According to Global Post
, in 2008, doctors removed a 2-inch embryo from the body of a 9-year-old girl in Greece. In 2006, a half-formed twin with limbs, genitalia, hair and fingernails was reported in the stomach of a 36-year-old Indian man.
The Greek girl had been diagnosed as having a tumor growing on the right side of her belly, after she complained of stomach pains, before doctors realized it was a parasitic twin. She made full recovery after surgery.
says a neonatologist at Rainbow Babies and Children's Hospital in Cleveland, Jonathan Fanaroff, said a conjoined twin
can live as a "parasite," relying on its sibling for nutrition and blood supply. When one conjoined twin fully absorbs the other it becomes a fetus-in-fetu
, as in the case of Isbac. According to Fanaroff, "In this kind of situation, because it was inside the other boy, it wasn't able to survive."
Dr. Fanaroff said the surgeons should have no trouble removing the "twin."