TOPICS: Epidural hematoma, temporal bone, middle meningeal artery, lens shaped lesion, lucid interval, herniation, subdural hematoma, bridging veins, traumatic brain injury, crescent shaped lesion, neurologic signs, herniation, tonsillar herniation, cerebellar tonsils, foramen magnum, cardiopulmonary arrest, subfalcine herniation, cingulate gyrus, falx cerebri, anterior cerebral artery, uncal herniation, medial temporal lobe, occulomotor nerve, down and out eyes, PCA, contralateral homonymous hemianopia, paramedian artery, duret hemorrhage