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In Colombia, an extraordinary birth





  • DR. MIGUEL PARRA-SAAVEDRA VIA NEW YORK TIMES

    An ultrasound scan showing a little fetus forming in the twin sister's abdomen in the abdomen.


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A Colombian woman has given birth to a baby whose abdomen contained the small, half-shaped – but still growing – body of her own twin sister.

This type of birth, an example of "fetus-in-fetus," is very rare, but not unprecedented.

The condition was described in a British medical record in 1808 and is believed to occur in about 1 in every 500,000 births. In recent years, there have been similar births in India, Indonesia and Singapore.

The latest case was even more unusual because doctors clearly identified the fetus during pregnancy, Dr. Miguel Parra-Saavedra, a high-risk precautionary specialist in Baranquilla, Colombia who monitors birth.

He first saw the mother Monica Vega when she was in her 35th week of pregnancy, five weeks after the birth deadline. Her obstetrician believed that the fetus had a liver cyst.

However, Parra-Saavedra, through color doppler and 3D / 4D ultrasound examinations, could see that the fluid-filled space actually contained a small infant, supported by a separate umbilical cord drawing blood, where it is connected to the larger twin's intestines.

"I told the mother and she said," What? No, doctor, it's impossible, "Parra-Saavedra said." But I explained step by step and she understood. "

He warned a local television news network that came with Vega, now 33, at birth. by its daughter Itzamara, and the operation to remove Itzamara's partially formed twin

(Parra-Saavedra had developed relationships with several journalists during Colombia's Zika outbreak in 2016 because he treated mothers If babies had microcephalias or small heads caused by the virus. Her belly organs.

The next day, they removed the birthright by laparoscopic surgery, it was about 2 inches long and had a rudimentary head and limbs, but lacked brain and heart, Parra-Saavedra said.

Fetus-in-fetus wrongly diagnosed s about a teratom, a tumor that can contain bones, muscle tissue and hair. A DNA comparison is made, but Parra-Saavedra has no doubt that the fetuses started as identical twins from the same egg.

Because the smaller fetus nourished from his siblings, it is called a heteropagus or parasitic twin. 19659006] Some heteropagus twins are born coherently with their healthy siblings, while some grow partially inside and partly outside their twin's body.

The birth ratio is believed to occur shortly after the 17th birthday when the embryo flattens out as a disc and then folds onto itself to form the elongated fetus.

Doctors believe that the twin embryos, in very rare cases, divide only partially, and the larger one wraps around the smaller ones.

The condition can go undetected for many years. In 2015, a 45-year-old English woman living in Cyprus started to get a 4-inch tumor on her ovary.

On dissection, growth appeared to have a partially shaped face with an eye, a tooth and black hair. Doctors concluded that it was a twin she had absorbed while she was in her mother's womb.

Itzamara goes well, said Parra-Saavedra. "She has a little scar on her stomach, but she is a normal baby now, except that the whole world is talking about her."


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