Brachyphalangy is a condition in which one or more of the phalanges of the fingers and toes are smaller than normal.[1]

Brachyphalangy
Other namesBrachyphalangism
Brachyphalangy of the thumb's distal phalanx, also known as brachydactyly type D, with otherwise normal phalanges of the 2nd-5th digits
SymptomsHaving a phalange(s) shorter than average
Usual onsetBirth
DurationLife-long
FrequencyExact frequency not known, but brachyphalangy is considered to be rare

This condition is one of the most common non-syndromic causes of brachydactyly and clinodactyly.

Causes

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Brachyphalangy of the distal phalange of the thumb

This condition is caused by either fusion or early closure of the phalange's growth plate. One example is brachydactyly type D, which is caused by an early closure of the thumb's distal phalange, leading to a congenitally short thumb with a similarly short and wide thumb nail.

References

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  1. ^ "brachyphalangia". The Free Dictionary. Retrieved 29 May 2022.