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Polysyndactyly or PPD4 is a form of preaxial polydactyly of fingers (see this term), a limb malformation syndrome, characterized by the presence of a thumb showing the mildest degree of duplication, being broad, bifid or with radially deviated distal phalanx. Syndactyly of various degrees of third-and-fourth fingers is occasionally present.
ORPHA:93338Classification level: Disorder
A summary on this disease is available in Español (2014) Français (2014) Nederlands (2014)
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