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KMID : 0361720060170020225
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Korean Journal of perinatology
2006 Volume.17 No. 2 p.225 ~ p.230
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A Case of Fetus in Fetu
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Kim Ji-Young
Yang Seung-Ho
Choo Dae-Hyeon
Oh Hoon-Kyu
Chung Hai-Lee
Kim Woo-Taek
Hong Seong-Yeon
Park Young-Chan
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Abstract
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Fetus in fetu is an extremely uncommon cause of abdominal mass in the neonate with an incidence of 1 in 500,000 births. This is thought to occur when a monozygotic, diamniotic twin is incorporated into the body of its sibling early in embryonic development. A case of retroperitoneal fetus in fetu in a 3 day old male infant is reported, the excised round mass contained the vertebral column, 2 feet, 2 arms, small penis and testis. The presence of vertebral axis and organogenesis differentiates it from a teratoma. More than 100 cases of fetus in fetu have been reported, most of which have been in the abdomen. We report a case of a well developed fetus in the retroperitoneal area of a neonate delivered at term.
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KEYWORD
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Fetus in fetu, Retroperitoneal, Teratoma
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