Overview
Arachnodactyly is a condition in which the fingers are long, slender, and curved. They look like the legs of a spider (arachnid).
Commonly Associated With
Spider fingers; Achromachia
Cause
Causes may include:
Homocystinuria
Marfan syndrome
Other rare genetic disorders
Note: Having long, slender fingers may be normal.
Exams & Tests
The provider will perform a physical exam. You will be asked questions about the medical history.
This includes:
When did you first notice the fingers being shaped like this?
Is there any family history of early death? Is there any family history of known hereditary disorders?
What other symptoms are present? Have you noticed any other unusual things?
Diagnostic tests are most often not necessary unless a hereditary disorder is suspected.
Source
Courtesy of MedlinePlus from the National Library of Medicine
