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KMID : 0621520160210020093
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Journal of the Korean Society for Surgery of the Hand
2016 Volume.21 No. 2 p.93 ~ p.99
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Postaxial Polydactyly of the Hands and Feet in Monozygotic Twins
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Hwang So-Min
Park Beom
Hwang Min-Kyu
Kim Hyung-Do
Kim Min-Wook
Lee Jong-Seo
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Abstract
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Polydactyly is the most common congenital difference of the hand and foot presenting as a range of defects from minor soft tissue duplications to major bony abnormalities. Although polydactyly of the hand is reported to occur among approximately 1 in 1,000 live births, the co-occurrence of hand polydactyly on hands and polydactyly on feet is as rare as one out of 100,000 persons. We report a case of hand and foot polydactyly in twins. One of the twins had polydactyly on both hands and feet, the other had polydactyly on the right hand and both feet. Postaxial polydactyly in monozygotic twins appears on both hands and feet in a different form shows that polydactyly is caused by multiple factors. It has been reported that the mother’s infection and drug in addition to hereditary factors are the causes for polydactyly, but since they are unknown yet, it is necessary to conduct a study of them.
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KEYWORD
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Congenital difference, Monozygotic twins, Polydactyly, Postaxial
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