Marfan syndrome is an inherited disorder, a rare genetic condition that mainly affects connective tissues and thus eventually heart, eyes, blood vessels, skeleton etc. They are usually tall and thin with disproportionately long arms, legs and fingers, protruding/ dipped breastbone, extreme nearsightedness, flat foot, heart murmurs etc.
It causes cardiovascular complications including aortic aneurysm, aortic dissection, valve malformations etc, eye complications including lens dislocation, retinal problems, early onset of cataracts etc, skeletal complications includes abnormal curves in the spines, arched palate and crowded teeth and complication of pregnancy also exist.
Treatment usually includes medications to keep a low blood pressure. Abraham Lincoln is the most famous American who had Marfan syndrome.