Kristin and Jacob Tyler were told that their baby had sacrococcygeal teratoma, a rare fetal tumor that forms from the baby's tailbone. It occurs in every 20,000 births. Nassr told PEOPLE that the ...

Sacrococcygeal teratoma is a tumor that develops before birth and grows from a baby’s coccyx ... Found more often in girls than boys, this tumor occurs in one out of every 35,000 births.

The next day, a specialist diagnosed their daughter not with spina bifida, but with a sacrococcygeal teratoma, a rare fetal tumor that forms from the baby’s ... often that boys, and that it's ...

But along with the happy news that they were having a boy came some frightening ... life-threatening tumor on their baby’s heart called an intrapericardial teratoma – a very rare diagnosis.

A teratoma may be cancerous or benign (noncancerous ... into any type of cell—from egg and sperm to hair cells. As a baby develops, their germ cells start moving to various places in the ...

[Seeing Double: 8 Fascinating Facts About Twins ] But the doctors who treated the baby girl wrote that rather than a teratoma ... And in 2011, an 18-year-old boy had his retained twin removed ...

A baby boy in India was born with his own "twin" inside ... However, some researchers think that fetus in fetu is actually a kind of teratoma — a type of tumor that can contain all three of ...

While still in the womb, doctors discovered Lynlee developed a sacrococcygeal teratoma, a rare tumor that ... in girls four times more often than in boys, according to the National Organization ...

Grabb said he could not tell whether the miniature limbs were from a benign stem cell tumor called a teratoma or the remnants ... like the breach delivery of a baby, coming out of the brain ...

That’s when they learned their baby had a pericardial teratoma. “We were told multiple times the outlook is grim and if you don’t do something soon — in a matter of days — the baby could ...