Polydactyly
(Redirected from Polydactylism)
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
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| Polydactyly | |
|---|---|
| Synonyms | Polydactylism, hyperdactyly |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Presence of extra fingers or toes |
| Complications | Possible difficulty with functionality or cosmetic concerns |
| Onset | Congenital |
| Duration | Lifelong |
| Types | N/A |
| Causes | Genetic mutation |
| Risks | Family history |
| Diagnosis | Physical examination, X-ray |
| Differential diagnosis | Syndactyly, Cleft hand |
| Prevention | None |
| Treatment | Surgical removal of extra digits |
| Medication | None |
| Prognosis | Generally good with treatment |
| Frequency | 1 in 500 to 1 in 1,000 live births |
| Deaths | N/A |
Polydactyly is the presence of an excessive number of fingers or toes.
Features[edit | edit source]
The condition may be present as part of a collection of abnormalities, or it may exist by itself.
Inheritance[edit | edit source]
When polydactyly exhibits by itself, it is inherited as an autosomal dominant trait.
Racial differences[edit | edit source]
African Americans are more likely to have polydactyly compared to Caucasians
Causes[edit | edit source]
Some of the causes include:
- Asphyxiating thoracic dystrophy
- Carpenter syndrome
- Ellis-van Creveld syndrome (chondroectodermal dysplasia)
- Smith-Lemli-Opitz syndrome
- Trisomy 13
- Familial polydactyly
- Laurence-Moon-Biedl syndrome
- Rubinstein-Taybi syndrome
Images[edit | edit source]
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Contributors: Prab R. Tumpati, MD
