Science Fair Project Encyclopedia
Craniopagus parasiticus is a medical condition in which an undeveloped, parasitic twin head is attached to the body of a developed twin.
There have only been eight documented cases of this phenomenon. On December 10, 2003, Rebeca Martínez was born in the Dominican Republic with this rare condition. She was the first baby born with the condition to undergo an operation to remove the second head. She died on February 7, 2004, after an 11-hour operation. On February 19, 2005, Manar Maged underwent a successful 13-hour surgery in Egypt.
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