Brachydactyly
Brachydactyly (Greek βραχύς = "short" plus δάκτυλος = "finger"), is a medical term which literally means "short finger". The shortness is relative to the length of other long bones and other parts of the body. Brachydactyly is an inherited, usually dominant trait. It most often occurs as an isolated dysmelia, but can also occur with other anomalies as part of many congenital syndromes. Brachydactyly can also be a signal that one will be at risk for heart problems as they age.Nomograms for normal values of finger length as a ratio to other body measurements have been published. In clinical genetics, the most commonly used index of digit length is the dimensionless ratio of the length of the third (middle) finger to the hand length. Both are expressed in the same units (centimeters, for example) and are measured in an open hand from the fingertip to the principal creases where the finger joins the palm and where the palm joins the wrist.

Types
There are several types of Brachydactyly:

Other syndromes
In the above brachydactyly syndromes, short digits are the most prominent of the anomalies, but in many other syndromes (Down syndrome, Rubinstein–Taybi syndrome, etc.), brachydactyly is a minor feature compared to the other anomalies or problems comprising the syndrome.

See also
Hypertension and brachydactyly syndrome
Thumb stiffness-brachydactyly-intellectual disability syndrome
Clubbed thumb
Syndactyly

References
External links

Type A2
Brachydactyly type A1 at NIHs Office of Rare Diseases
Brachydactyly type A2 at NIHs Office of Rare Diseases
Brachydactyly type A3 at NIHs Office of Rare Diseases
Brachydactyly type A6 at NIHs Office of Rare Diseases
Brachydactyly type A7 at NIHs Office of Rare Diseases
Brachydactyly type B at NIHs Office of Rare Diseases
Brachydactyly type C at NIHs Office of Rare Diseases
Brachydactyly type E at NIHs Office of Rare Diseases
Brachydactyly types B and E combined at NIHs Office of Rare Diseases