Marfan syndrome

Epic card · No. 9915

Marfan syndrome (MFS) is a multisystemic genetic disorder that affects the connective tissue. People with the condition are often tall and thin, with long arms, legs, fingers, and toes. They also typically have exceptionally flexible joints and abnormally curved spines. The most serious complications involve the heart and aorta, with an increased risk of mitral valve prolapse and aortic aneurysm. The lungs, eyes, bones, and the covering of the spinal cord are also commonly affected. The severity of the symptoms is variable. MFS is caused by a mutation in FBN1, one of the genes that make fibrillin, which results in abnormal connective tissue. It is an autosomal dominant disorder. In about 75% of cases, it is inherited from a parent with the condition, while in about 25%, it is a new mutation. Diagnosis is often based on the Ghent criteria, family history, and genetic testing (DNA analysis). No cure for MFS is known. Many of those with the disorder have a normal life expectancy with proper...

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