
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
MASS Syndrome
Introduction
MASS syndrome is a combination of symptoms that is similar the Marfan syndrome but does not involve lens dislocation. It is a connective tissue disorder that involves the skeleton, skin, aorta and mitral valve.
Symptoms
- Deformed ribcage
- Long limbs
- Loose joints
- Mild aortic root dilatation
- Mitral valve prolapse
- Narrow face
- Skin stretch marks
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