[Extensive subdural hematoma with brain edema and brain death. Sequela of late manifestation of vitamin K deficiency].

After an uneventful pregnancy and birth without vitamin-K-prophylaxis a seven-week-old breast-fed infant showed a subdural hemorrhage caused by vitamin-K-deficiency. Laboratory investigations indicated a subclinical cholestasis. The infant died 3 days later. This case once again provides a strong argument for routine vitamin-K-prophylaxis after birth for all infants.