Fetus-in-fetu

AProudLefty

Black Kitty Ain't Happy
Sounds like a Chinese soup but it's a real thing. :whoa:

A baby born in Hong Kong was pregnant with her own siblings at the time of her birth, according to a new report of the infant's case.

The baby's condition, known as fetus-in-fetu, is incredibly rare, occurring in only about 1 in every 500,000 births. It's not clear exactly why it happens.


But the doctors who treated the baby girl wrote that rather than a teratoma, the tiny fetuses may instead be the remains of sibling twins that were absorbed during the pregnancy.

The newborn baby was referred to Dr. Yu Kai-man, an obstetrician and gynecologist at Queen Elizabeth Hospital in Hong Kong, because the baby was suspected to have a tumor, according to the case report. The mother's prenatal ultrasound had revealed an unusual mass within the infant, but it was unclear to the doctors exactly what the mass was. During surgery, which was done when the girl was about 3 weeks old, the surgeons discovered two fetuses between her liver and her kidney.

One fetus weighed 0.3 ounces (9.3 grams) and the other 0.5 ounces (14.2 grams) — corresponding to about 8 and 10 weeks' gestation, the case report said.

Each of the babies had an umbilical cord that linked to a placenta-like mass in the girl's belly.


This here is the interesting part:

Fetus-in-fetu may, in fact, be similar to a surprisingly common phenomenon: vanishing twin syndrome, Burch said. In many twin pregnancies, one of the twins is completely absorbed and "vanishes" into the body of the other.

https://www.livescience.com/49766-baby-pregnant-twins.html
 
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