Intraventricular hemorrhages following blast exposure. Shown are Vibratome sections imaged by diascopic bright/dark field illumination from 1×-acute blast-exposed animals. Note blood (arrows) in the region of the choroid plexus (A) and dorsal third ventricle (B). Panels (C) and (D) show comparable regions from control brains for (A) and (B). Scale bar: 1 mm.