Brachydactyly type D
| Brachydactyly type D |
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"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.
Digital clubbing,[2] however, is a "clinical sign associated with a number of diseases."[3]
Other names
The condition is also sometimes known as potter's thumb or royal thumb but mostly referred to as a stubby thumb.[1]
References
- ^ a b Online Mendelian Inheritance in Man (OMIM): Brachydactyly, Type D; BDD. - 113200
- ^ "National Center for Biotechnology Information". www.ncbi.nlm.nih.gov. Retrieved 2015-09-18.
- ^ "Digital Clubbing: A Sign of Underlying Disease" (PDF). Hospital Physician.
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