Timothy syndrome is a multi-system disorder with characteristics of cardiac, hand, facial and neurodevelopmental features that include QT prolongation, webbed fingers and toes, flattened nasal bridge, low-set ears, small upper jaw, thin upper lip, and characteristic features of autism or autistic spectrum disorders. Timothy syndrome is caused by mutations in the CACNA1C gene. It is inherited as autosomal dominant trait. [from
SNOMEDCT_US]