Fetus in fetu or Foetus in foetu is a rare medical condition in which a person develops the forming of a mass of tissue resembling a fetus inside the body.
Fetus in fetu occurs to about one in 500 000 live births and is said to either be the cause of a normal fetus eveloped inside its twin or that the mass is a highly developed teratoma (an encapsulated tumor).
In the theory of the fetus in fetu being a teratoma, it thought that two fetuses during pregnancy share a common placenta in which one fetus wraps around the other and the fetus wrapped inside becomes a parasite which feeds on the host’s blood supply. The parasitic twin in this case has no brain and is almost always unable to survive on its own.
A fetus in fetu’s organs have a working blood supply from its host, but never any functional brain, heart, lungs, gastronomical or uninary functions. It works more like a parasite than an human being.
Sanju Bhagat - The Man with a twin living inside of him
Sanju Bhagat – The Man with a twin living inside of him
The Indian man Sanju Bhagat is a more known case of fetus in fetu. Sanju Bhagat, from Nagpur India had a swollen stomach, could barely breathe and looked like he was about to give birth to a baby.
One night in June 1999, the 36-year old finally after all those years thought his big belly was more than a cosmetic problem.
The doctor’s thought Bhagat had a giant tumor so big it was pressing on his diaphragm causing his problems to breathe. During the serious operation, the doctors discovered something unexpected, as gallons of fluid spilled out from Bhagat’s stomach: the doctor could shake hands with somebody inside.
The doctors discovered a lot of bones, limbs, hair and a jaw and genitalia in Bhagat’s stomach. The creature inside the stomach had hands and feet very developed as well as long fingernails.
Sanju Bhagat is one of fewer than 90 cases of fetus in fetu recorded in medical litterature. However, usually both twins die before birth because of having to share the same placenta, but in this case the fetus managed to feed off Bhagat for 36 years and survive.
Alamjan Nematilaev - The Boy who gave birth to his own twin
Alamjan Nematilaev – The Boy who gave birth to his own twin
Another more known case of fetus in fetu is Alamjan Nematilaev, then in 2003, a seven year old boy from Kazakhstan. Alamjan complained in about something moving inside of him which led doctors to perform an operation.
As whit Bhagat, doctors found an identical twin brother growing inside of Alamjan, which had part of a head, som hair and teeth and even something resembling of a face.
Doctors were unsure what caused the boys condition and tried to figure out if it had anything to do with the radiation from the Chernobyl disaster, but it was most likely because of Alamjan being the fetus wrapped around his twin.
The reason Alamjan felt the fetus move inside him, was because the fetus can develop a primitive spinal reflex system and in some cases limbs and fingers if it gets enough blood.