. "Le syndrome MASS, appel\u00E9 aussi ph\u00E9notype MASS, est une forme mineure du syndrome de Marfan. MASS est l'acronyme de Valve Mitrale, Aorte, Skin (peau en anglais) et Squelette, cette maladie \u00E9tant constitu\u00E9e par une association de signes affectant ces 4 \u00E9l\u00E9ments : \n* Prolapsus de la valve mitrale ; \n* Dilatation de l'aorte ; \n* Signes cutan\u00E9s tels des vergetures ; \n* Troubles du squelette avec d\u00E9formation de la cage thoracique."@fr . . . . . "Syndrome MASS"@fr . "4961"^^ . "MASS syndrome is a medical disorder of the connective tissue similar to Marfan syndrome.MASS stands for: Mitral valve prolapse, Aortic root diameter at upper limits of normal for body size, Stretch marks of the skin, and Skeletal conditions similar to Marfan syndrome. It is caused by a mutation in the FBN1 gene, which encodes fibrillin-1. Fibrillin-1 is an extracellular matrix protein that is found in microfibrils; defects in the fibrillin-1 protein cause the malfunctioning of microfibrils, which results in improper stretching of ligaments, blood vessels, and skin. Treatment options for MASS syndrome are largely determined on a case-by-case basis and generally address the symptoms as opposed to the actual disorder; furthermore, due to the similarities between these two disorders, individuals with MASS syndrome follow the same treatment plans as those with Marfan syndrome. Other possible symptoms are mitral valve prolapse, a large aortic root diameter, and myopia. The skeletal features found in MASS syndrome include curvature of the spine (scoliosis), chest wall deformities, and joint hypermobility. MASS syndrome and Marfan syndrome are overlapping connective tissue disorders. Both can be caused by mutations in the gene encoding a protein called fibrillin. These conditions share many of the same signs and symptoms including long limbs and fingers, chest wall abnormalities (indented chest bone or protruding chest bone), flat feet, scoliosis, mitral valve prolapse, loose or hypextensible joints, highly arched roof of the mouth, and mild dilatation of the aortic root. Unlike in Marfan syndrome, aneurysm is not present. Individuals with MASS syndrome do not have progressive aortic enlargement or lens dislocation, while people with Marfan syndrome do. Skin involvement in MASS syndrome is typically limited to stretch marks (striae distensae). Also, the skeletal symptoms of MASS syndrome are generally mild."@en . . . . . . . . "536030.0"^^ . . . "1043703207"^^ . "4308"^^ . . . "MASS syndrome"@en . "This condition is inherited in an autosomal dominant manner"@en . . . . "MASS syndrome"@en . "Le syndrome MASS, appel\u00E9 aussi ph\u00E9notype MASS, est une forme mineure du syndrome de Marfan. MASS est l'acronyme de Valve Mitrale, Aorte, Skin (peau en anglais) et Squelette, cette maladie \u00E9tant constitu\u00E9e par une association de signes affectant ces 4 \u00E9l\u00E9ments : \n* Prolapsus de la valve mitrale ; \n* Dilatation de l'aorte ; \n* Signes cutan\u00E9s tels des vergetures ; \n* Troubles du squelette avec d\u00E9formation de la cage thoracique."@fr . . "Mitral valve-aorta-skeleton-skin syndrome"@en . "99715"^^ . . . "99715" . . . . . "4308"^^ . . . . . "8265662"^^ . "MASS syndrome"@en . . . . . "MASS syndrome is a medical disorder of the connective tissue similar to Marfan syndrome.MASS stands for: Mitral valve prolapse, Aortic root diameter at upper limits of normal for body size, Stretch marks of the skin, and Skeletal conditions similar to Marfan syndrome. It is caused by a mutation in the FBN1 gene, which encodes fibrillin-1. Fibrillin-1 is an extracellular matrix protein that is found in microfibrils; defects in the fibrillin-1 protein cause the malfunctioning of microfibrils, which results in improper stretching of ligaments, blood vessels, and skin."@en . . . .