Baby girl born 'pregnant' with twins

Occasionally a human birth is anything but ordinary. A recent report highlighted a rare case from 2010, in which a baby girl born in Hong Kong was found to be carrying twin fetuses.

The study surrounding the birth has been chronicled in the Hong Kong Medical Journal. The roughly 9-pound infant was born with a condition known as fetus in fetu.

Initially, doctors thought she had tumors in her abdomen, but soon discovered the two growths were actually a pair of fetuses, aged between 8 and ten weeks.

Each was found to have a rib cage, spine, anus, an umbilical cord, brain matter, intestines and four limbs. The fetuses weighed less than an ounce combined.

A specialist in obstetrics and gynecology stated, "Since it is impossible for the little girl to have conceived the pregnancy on her own, the fertilization of the twin fetuses, of course, belongs to her parents, which has gone to the wrong place."

Medical experts aren't positive what exactly causes the condition, but they do know it's very rare with less than 200 cases reported around the world.

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