Multifaceted mosaic - when a twin brother exists inside your own body

If you have large colored patches of skin, or two eye colors, and even two different blood groups, quickly go to the doctor for an accurate diagnosis.

Twins often feel special connections. But for Taylor Muhl, the California singer mentioned in this article, that connection is even more special, as her twin sisters exist . within her own body. .

People with two eye colors are also a mosaic.

This condition is also known as a mosaic , meaning that in her body there are two lines of DNA , each with a gene that regulates a different body. This rare situation can happen during fetal development. In Muhl's case, she said she absorbed her twin sister while still in her mother's womb.

This explanation seems quite appropriate to answer the big birthmark on her body. Her half body is different from the other - the result of her twin sister's DNA.

Taylor Muhl said: 'I feel very comfortable and free because for the first time in my life I understand why my two halves are different. Previously, doctors only diagnosed that as a birthmark. But the explanation of my twin sister really makes sense '.

Taylor Muhl's body is a polyploid mosaic . Dr. Brocha Tarshish, a clinical geneticist at Nicklaus Children's Hospital in Miami, said: 'This situation occurs through two-egg insemination with two sperms, followed by a combination of two in the blastocyst stage or embryo, forming a body that exists in two different cell lines. This phenomenon occurs at a very early stage of the embryonic period.

This phenomenon occurs in the very early stages of the embryonic period.

Most cases of mosaic in humans are difficult to be accurately diagnosed. There has been a study of this issue conducted in 2009. Research results show that, without clinical tests, clinicians can detect and diagnose mosaic as if is impossible. But with some special cases such as different colored patches of skin, or two different colored eyes, . can make the diagnosis of clinicians easier. Some cases of mosaic in humans also have 2 different blood groups.

Dr. Tarshish shared: 'It is difficult to know how the mosaic status of each case will manifest, which tissue on the body is most affected. But most of a genome will be more dominant and show more outward than 50-50 'equally.

Heterosexual twins, this person's internal and external genitalia may be greatly affected, which may cause bisexual status.

In the case of Taylor Muhl, doctors explained that her body has two different immune systems and two different bloodlines, which come from two distinct DNA lines.

In addition, Ms. Muhl also shared more about her body's response to 'foreign' DNA from her twin sister. She also has an allergy to certain foods, medicines, supplements, jewelry and insects.

In general, this is a very rare phenomenon.

Muhl has been diagnosed with mosaic since 2009, but until last year she declared her status publicly. Currently, she is living happily and actively so her body is always ready to deal with her own situation.

Dr. Tarshish said: 'It is possible that many of our mosaics have not been discovered because of the limited clinical diagnosis. But overall, this is a very rare phenomenon. '

In the past, there were many cases of mosaic in humans discovered. In 2002, a criminal newspaper reported on a woman named Karen Keegan. When kidney transplantation was indicated, she made the doctors extremely confused when her tests and her three children showed that she was not the mother of her child. Eventually, doctors discovered that Karen was a body that was inlaid with a set of blood cell DNA different from other cells in the body.