Trismus pseudocamptodactyly syndrome: Dutch-Kentucky syndrome.

A hand, foot, and mouth combination of anomalies, which is apparent on motion, has been traced through eight generations of a southern Appalachian family. The clinical features from birth to old age are presented, and attention is called to the handicapping aspects. There is a great variability in severity of the trait. Inheritance occurs as an autosomal dominant trait, but there are fewer affected persons than expected, especially females.