Monozygotic twinning itself after elective single embryo transfer is uncommon, occurring in no more than roughly 3% of cases.

Twin brothers who were born conjoined, sharing part of their sternum, diaphragm, abdominal wall and liver, recently celebrated their first birthday after undergoing successful separation surgery.

When conjoined twins are born, sometimes, one of the twins emerges alive while the second twin is stillborn. Sadly, in these tragic cases, emergency measures need to be taken in order to keep the ...

After an 18-hour surgery, a set of formally conjoined twins are officially separated. When mom Sam took her twins Ally and El to Seattle Children's Hospital last year, they were conjoined at the ...