Primary post-traumatic intraventricular hemorrhage.

A case of primary post-traumatic intraventricular hemorrhage is presented. The patient, a 22 years-old man, after a mild head injury and a lucid interval lost consciousness and progressively developed symptoms of raised intracranial pressure. CT scanning, 24 hours later, revealed blood in the ventricles without concomitant brain contusion. The patient's condition improved dramatically after an external ventricular drainage.