Meester-Loeys syndrome

A syndromic disease caused by a variation in the BGN gene, characterized by early-onset aortic aneurysm (involving the aortic root/ more distal ascending aorta) and dissection. Mild mitral or aortic insufficiency may also be present. Majority of the patients present with variable facial dysmorphism including frontal bossing, hypertelorism, downslanting palpebral fissures, proptosis and malar hypoplasia. Additional clinical features may include joint hypermobility, contractures, and mild skeletal dysplasia.