Marfan's syndrome (patient information)

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Marfan's syndrome

Overview

What are the symptoms?

What are the causes?

Diagnosis

When to seek urgent medical care?

Treatment options

Where to find medical care for Marfan's syndrome?

Prevention

What to expect (Outlook/Prognosis)?

Possible complications

Marfan's syndrome On the Web

Ongoing Trials at Clinical Trials.gov

Images of Marfan's syndrome

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CDC on Marfan's syndrome

Marfan's syndrome in the news

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Directions to Hospitals Treating Marfan's syndrome

Risk calculators and risk factors for Marfan's syndrome

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Aditya Govindavarjhulla, M.B.B.S. [2]

Overview

Marfan's syndrome is a disorder of connective tissue, the tissue that strengthens the body's structures. Disorders of connective tissue affect the skeletal system, cardiovascular system, eyes, and skin.

What are the symptoms of Marfan's syndrome?

What causes Marfan's syndrome?

Marfan's syndrome is caused by defects in a gene called fibrillin-1. Fibrillin-1 plays an important role as the building block for elastic tissue in the body.

The gene defect also causes too much growth of the long bones of the body. This causes the tall height and long arms and legs seen in people with this syndrome. How this overgrowth happens is not well understood.

Other areas of the body that are affected include:

  • Lung tissue
  • The aorta, the main blood vessel that takes blood from the heart to the body may stretch or become weak (called aortic dilation or aortic aneurysm)
  • The eyes, causing cataracts and other problems
  • The skin
  • Tissue covering the spinal cord

In most cases, Marfan syndrome is inherited, which means it is passed down through families. However, up to 30% of cases have no family history. Such cases are called "sporadic." In sporadic cases, the syndrome is believed to result from a spontaneous new gene defect.

Who is at highest risk?

Diagnosis

Medical history

Physical exam

Testing

When to seek urgent medical care?

Treatment options

Where to find medical care for Marfan's syndrome?

Prevention of Marfan's syndrome

What to expect (Outlook/Prognosis)?

Possible complications

Sources