<unk>  is associated with genetic damage at the Elastin gene locus on chromosome 7q11.23. Fluorescent in situ hybridisation techniques have revealed that 96% of patients with Williams syndrome, where<unk>  is characteristic, have a hemizygous deletion of the Elastin gene. Further studies have shown that patients with less extensive deletions featuring the Elastin gene also tend to develop<unk>
Supravalvular aortic stenosis
Bicuspid aortic valve
Quadricuspid aortic valve
Mitral annular calcification
Accessory auricle
Overriding aorta
Mitral facies
Pulmonary valve stenosis