Marfan syndrome is a connective tissue disorder, and it's inherited. It's inherited as an autosomal dominant fashion. It affects approximately one in 5,000 people. There is no racial preference or gender preference, that is both males and females are affected equally, Asian, Black and Whites. It leads to about 50,000 affected cases in the United States and probably about 200,000 patients worldwide. Learn more about Marfan syndrome, treatment options and what can happen should the disease go untreated.