Polydactyly of a biphalangeal thumb and/or hallux

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Synonyms: PPD1 | Preaxial polydactyly type 1

A rare non-syndromic limb malformation characterized by the duplication of one or more skeletal components of a biphalangeal thumb and/or hallux. Hands are preferentially affected (in bilateral) and the right hand is more commonly involved than the left. Hallux duplication may present concomitantly to or independently of thumb polydactyly and is predominantly unilateral right.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version June 2024

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Polydactyly of a biphalangeal thumb and/or hallux?

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