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:
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Homocystinuria
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Marfan syndrome
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Other rare genetic disorders
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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:
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When did you first notice the fingers being shaped like this?
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Is there any family history of early death? Is there any family history of known hereditary disorders?
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What other symptoms are present? Have you noticed any other unusual things?
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Diagnostic tests are most often not necessary unless a hereditary disorder is suspected.
Source
Courtesy of MedlinePlus from the National Library of Medicine
