RT Journal Article SR Electronic T1 Neuropsychological consequences of two patterns of brain damage shown by MRI in survivors of severe head injury. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 328 OP 331 DO 10.1136/jnnp.59.3.328 VO 59 IS 3 A1 J T Wilson A1 D M Hadley A1 K D Wiedmann A1 G M Teasdale YR 1995 UL http://jnnp.bmj.com/content/59/3/328.abstract AB Two subgroups of patients were identified from 48 patients with traumatic head injury who had MRI during the acute stage: (a) those with severe diffuse injury--six patients with lesions in both the corpus callosum and the brain stem; (b) those with severe focal injury--16 patients with extensive frontotemporal lesions. Most patients with diffuse injury were in a coma on admission to hospital, whereas most patients with focal injury were out of coma. Duration of post-traumatic amnesia was prolonged in both groups. Patients were followed up at six months after injury, when a battery of neuropsychological tests was given. Patients with both diffuse and focal patterns of injury were impaired by comparison with controls on a range of measures, including tests of memory and attention. The findings contrast with the view that diffuse injury is of much greater importance than focal injury in determining outcome after head injury.