Marfan syndrome. With mitral insufficiency in twins.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008382:Marfan Syndrome / Q000150:complications / Q000235:genetics*; D008944:Mitral Valve Insufficiency / Q000150:complications / Q000235:genetics*