fetu

One form of parasitic twin, called fetus in fetu is another, more rare and often devastating case of poor twinning, where the fetus of one twin, it seems, actually forms around the other, in effect born with another body inside it.

Archive 2009-01-01 Heather McDougal 2009

One form of parasitic twin, called fetus in fetu is another, more rare and often devastating case of poor twinning, where the fetus of one twin, it seems, actually forms around the other, in effect born with another body inside it.

How Twins Go Bad Heather McDougal 2009

There seems to be a grey area between a fetus in fetu and what is called a teratoma: a kind of encapsulated tumor which contains tissue or organ components resembling normal derivatives of all three germ layers.

How Twins Go Bad Heather McDougal 2009

There seems to be a grey area between a fetus in fetu and what is called a teratoma: a kind of encapsulated tumor which contains tissue or organ components resembling normal derivatives of all three germ layers.

Archive 2009-01-01 Heather McDougal 2009

The growth may also have been a case of "fetus in fetu" — in which a fetal twin begins to form within another — but such cases very rarely occur in the brain, Grabb said.

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In a rare case of fetus in fetu, the twin had fed off his brother's blood supply, growing fingernails that were "quite long."

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This kind of completeness is rare in parasitic twins, especially among fetus in fetu, which tend not to be "alive" in the sense we think of, but rather a sort of growth in human form.

Archive 2009-01-01 Heather McDougal 2009

This kind of completeness is rare in parasitic twins, especially among fetus in fetu, which tend not to be "alive" in the sense we think of, but rather a sort of growth in human form.

How Twins Go Bad Heather McDougal 2009

The brothers have tremendous physical altercations, and it's during one hospital visit that an x-ray of Barry's skull shows what may or may not be a fetus in fetu, or undeveloped twin (in this case, a triplet), in the base of his brain.

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A fetus can get trapped inside of its twin its called fetus in fetu. the embryo that gets caught inside of its sibling, feeds off of the host. it can even continue growing after born.

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