抄録
CT findings in 59 cases of acute severe head trauma are presented. CT enabled an accurate differentiation between epidural and subdural hematomas in 100% of the cases. Not a small proportion of subdural hematoma cases was of the fulminant type which had a fatal outcome in one to 2 days after injury, in spite of intensive treatment.
In some cases traumatic intracerebral hematomas were not formed within 6 hours after injury and were demonstrated by CT more than 12 hours after causative trauma.
Cerebral contusion showed four types of CT findings, low density, high density, and isodensity with or without mass sign. Whereas many of the cases showing an area of high density on CT had poor outcomes, those with other types of CT findings had favorable prognosis.
Traumatic intracerebral hematoma should not be dealt with as an independent entity distinct from cerebral contusion but should be regarded as a variety of the latter. Accordingly, these two conditions were designated together as traumatic intracerebral lesion (TIL).
