Marfan Syndrome
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Marfan syndrome is an inherited connective tissue disorder that affects a person's heart, blood vessels, and skeleton. It is caused by a mutation in fibrillin-1, which is located on chromosome 15. Marfan syndrome has a number of characteristic clinical findings, such as marfanoid habitus, ectopia lentis (ectopic lens), mitral valve prolapse, and aortic dissection.