Nephrotic syndrome, hypertension, and adrenal failure in atypical Cockayne syndrome.

This report describes a boy with an atypical severe from of Cockayne syndrome type II manifesting in infancy. He developed nephrotic syndrome at the age of 4.7 years and a hypertensive crisis with hemiparesis at 5.4 years. Renal biopsy revealed focal segmental glomerulosclerosis, which was confirmed at autopsy. Adrenocortical failure was also present. The course was characterized by frequent infections and an episode of myocarditis. The boy died at the age of 6.0 years after rapid neurological deterioration accompanied by renal insufficiency. Autopsy disclosed cerebral leukodystrophy compatible with Cockayne syndrome.