A teenage girl in India was found with a bizarre mass of bone, teeth and "hairy cheese" in her stomach, according to a new case report. It was her own "twin" growing inside her, the result of an extremely rare condition called "fetus in fetus".
The 17-year-old went to the doctor after developing a lump in her abdomen, which has gradually grown in size over the past five years, according to a report published Aug. 12 in BMJ Case Reports. The teenager told doctors that she sometimes experienced abdominal pain and a feeling of fullness, even when she had not eaten much food. A CT scan reveals that a teenager has a large mass in his abdomen that appears to have multiple bones, "resembling the shape of vertebrae, ribs, and long bones," the authors wrote.
Doctors diagnose a teenager with a fetus in a fetus, a condition that is estimated to occur only in about 1 in 500,000 people worldwide.
The new case is even more unusual since it was diagnosed in a teenager, while most previous cases were detected in early childhood or early childhood, Moreover, it seems that the mass is the largest, by kicks ever in such a case.
The term "fetus in fetu" which literally means "fetus within fetus", usually is defined as a condition in which an abnormal developmental fetus is found in the body of an otherwise healthy twin, Live Science previously reported.
Fewer than 200 fetal fetal cases have been reported in the medical literature and only seven were reported in people aged 15 or over, according to the authors.
It is not clear what causes the fruit in the fetus. But scientists say the condition is probably a rare case of "parasitic twins" in which one twin is absorbed by the other during early pregnancy, according to Arizona State University. The tissue of the parasite twin depends on the body systems of the "host" twin to survive, according to a 2010 review of parasite twins published in the Journal of Pediatric Surgery.
However, some researchers believe that the fetus in the fetus is actually a type of teratoma, a type of tumor that can contain the three major cell types found in an early-stage human embryo.
In this case, the teenager needed surgery to remove the mass. When the doctors pulled it out, the mass was approximately two-thirds the size of the baby, which is full: it measures 14 by 6 by 4 inches (36 by 16 by 10 centimeters) and is made up of hairy cheese material, multiple teeth and structures resembling limb pimples, ”the authors wrote. They also contained skin, hair and fat, they said.
However, doctors were unable to remove all the tissue of the parasite twin from the teenager's body – they had to leave some of that tissue behind because it clung too tightly to the vessels that deliver blood to the gastrointestinal tract. Doctors worried that removing the stuck tissue could reduce blood flow to the teenager's intestines.
But if you leave that tissue inside, it's likely that it will turn into cancer, so the teenager will have to be checked every year, the authors said. Two years have passed since the teenager's surgery and she's been doing well, the report said.
"I was very worried about my tummy," the teenager quoted in the report. "After the surgery, I feel very well … and my parents are also very happy."
* Posted by lifecience.com