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Arachnodactyly

Dolichostenomelia (refers to a long, slender body, not just fingers); Spider fingers; Achromacria

 

Arachnodactyly is a condition in which the fingers are long, slender, and curved. They look like a spider's legs.

Considerations

 

Long, slender fingers can be normal and not associated with any medical problems. In some cases, however, "spider fingers" can be a sign of an underlying disease.

 

Causes

 

  • Homocystinuria
  • Marfan syndrome
  • Other rare genetic disorders

Note: Having long, slender fingers may be normal.

 

When to Contact a Medical Professional

 

Some children are born with arachnodactyly, although it may develop over time. Consult with your health care provider during a routine examination if your child has long, slender fingers and you are concerned that an underlying condition may exist.

 

What to Expect at Your Office Visit

 

The health care provider will perform a physical exam and ask questions about the person's medical history, including:

  • Time pattern: When did you first notice the fingers being shaped like this?
  • Family history: Is there any family history of early death? Is there any family history of known hereditary disorders?
  • Symptoms: What other symptoms are also present? Have you noticed any other unusual things?

Diagnostic tests are usually not necessary unless a hereditary disorder is suspected.

 

 

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        Review Date: 1/31/2014

        Reviewed By: Kimberly G Lee, MD, MSc, IBCLC, Associate Professor of Pediatrics, Division of Neonatology, Medical University of South Carolina, Charleston, SC. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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