Preaxial polydactyly of fingers (Q93800): Difference between revisions
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A polidactilia pré-axial dos dedos é uma síndrome de malformação de membros caracterizada pela inserção de um dedo supérfluo no primeiro dedo. Quatro tipos foram definidos. Tipo I (polidactilia do polegar bifalangeano): duplicação de um ou mais componentes do esqueleto do polegar bifalangeano; tipo II (polidactilia do polegar trifalângico): presença de polegar trifalângico geralmente oponível, que pode ou não estar duplicado; tipo III (polidactilia de indicador): polegar substituído por um ou dois dedos trifalangeanos com padrão dermatoglífico de indicador; tipo IV (polissindactilia): graus variavelmente leves de duplicação do polegar e sindactilia variável 3-4. | |||
| description / en | description / en | ||
Preaxial polydactyly of fingers is a limb malformation syndrome characterised by the attachment of a superfluous digit on the first digit. Four types have been defined. Type I (polydactyly of biphalangeal thumb): duplication of one or more skeletal components of a biphalangeal thumb; type II (polydactyly of triphalangeal thumb): presence of a usually opposable triphalangeal thumb which may or may not be duplicated; type III (polydactyly of index): thumb replaced by one or two triphalangeal digits with index dermatoglyphic pattern; type IV (polysyndactyly): variably mild degrees of thumb duplication and variable 3-4 syndactyly. | |||
Revision as of 08:54, 16 August 2026
Preaxial polydactyly of fingers is a limb malformation syndrome characterised by the attachment of a superfluous digit on the first digit. Four types have been defined. Type I (polydactyly of biphalangeal thumb): duplication of one or more skeletal components of a biphalangeal thumb; type II (polydactyly of triphalangeal thumb): presence of a usually opposable triphalangeal thumb which may or may not be duplicated; type III (polydactyly of index): thumb replaced by one or two triphalangeal digits with index dermatoglyphic pattern; type IV (polysyndactyly): variably mild degrees of thumb duplication and variable 3-4 syndactyly.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | ID_1066753144 |
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| English | Preaxial polydactyly of fingers |
Preaxial polydactyly of fingers is a limb malformation syndrome characterised by the attachment of a superfluous digit on the first digit. Four types have been defined. Type I (polydactyly of biphalangeal thumb): duplication of one or more skeletal components of a biphalangeal thumb; type II (polydactyly of triphalangeal thumb): presence of a usually opposable triphalangeal thumb which may or may not be duplicated; type III (polydactyly of index): thumb replaced by one or two triphalangeal digits with index dermatoglyphic pattern; type IV (polysyndactyly): variably mild degrees of thumb duplication and variable 3-4 syndactyly. |
