Delayed onset of intraventricular hemorrhage following removal of acute subdural hematoma--case report.

A 68-year-old male presented with neurological deterioration after a lucid interval following head trauma. Computed tomographic (CT) scans on admission demonstrated a subdural hematoma in the right frontotemporal region accompanied by subarachnoid hemorrhage in the right Sylvian and interhemispheric fissures. The subdural hematoma was removed via a right frontotemporoparietal craniectomy. However, immediate postoperative CT scans revealed hemorrhage in the third and both lateral ventricles, apparently separate from the primary hemorrhages. Decompressive rupture of damaged subependymal veins is suggested as the cause of the delayed traumatic intraventricular hemorrhage.