what are the malformations of the fetal hands ?

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What are the malformations of the fetal hands?
In utero, fetal hand malformations can be subdivided into (a) alignment abnormalities (clenched hand, camptodactyly, clinodactyly, hypokinesia, clubhand, phocomelia), (b) abnormal thumb, (c) abnormal size (macrodactyly, trident hand), (d) abnormal echogenicity (calcifications), (e) abnormal number of digits ( ...