Cockayne's syndrome and emphysema.

Abstract
A 5 yr old boy with Cockayne''s syndrome is described. In addition to the recognized clinical features, he presented with severe fixed airways obstruction, and investigations confirmed clinical and physiological emphysema. In a disorder associated with many features of aging, it is probable that the presence of relative .alpha.-1-antitrypsin deficiency (1.5 g/l) in a child with PiMZ phenotype contributed to his severe lung disease.