Clubbed thumb
From Infogalactic: the planetary knowledge core
| Brachydactyly type D | |
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Top view of a child with asymmetric brachydactyly type D thumb.
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| Classification and external resources | |
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| Patient UK | Clubbed thumb |
"Clubbed thumb" is a misnomer for stub(by) thumb, known clinically as brachydactyly type D, or BDD.[1] BDD is a harmless genetic trait characterized by the last bone of one or both thumbs being short and round with an accompanying short and wide nail bed.[2]
Digital clubbing,[3] however, is a "clinical sign associated with a number of diseases."[4]
Because of the supposed high incidence of BDD among European royalty in the past, BDD is claimed by some to be a marker of descent from European nobility.[citation needed]
Other names
The condition is also sometimes known as potter's thumb.[1]
References
- ↑ 1.0 1.1 Online 'Mendelian Inheritance in Man' (OMIM) Brachydactyly, Type D; BDD. -113200
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