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williams syndrome

(Science: syndrome) supravalvular aortic stenosis, mental retardation, elfin facies, and transient hypercalcaemia in infancy. It affects both sexes, with onset at birth or early infancy. Its aetiology is unknown. The primary disturbance begins in utero. There is a familial tendency but no genetic basis is apparent. It is possibly an abnormality of vitamin d metabolism. Its prognosis depends upon the degree of malformation and surgical correction. Williams' syndrome --> cardiofacial syndrome

(Science: syndrome) transient or persistent unilateral partial lower facial paresis accompanying some congenital heart disease.

A group of syndromes characterised by congenital cardiovascular, bone, soft tissue, and facial abnormalities. Examples include rubinstein-Taybi syndrome, noonan's syndrome and williams' syndrome.

Synonym: williams' syndrome.