CT has become the single sufficient and necessary radiographic test in the evaluation of patient with cranial trauma_ Recognition of the classic patterns and variations of traumatic CT abnormalities is challenging and rewarding aspects in head trauma.I n retrospective analysis of CT findings of 532 patients with head trauma, a wide spectrum of traumatic abnormalities were demonstrated : skull fracture , subgaleal hematoma, pneumocephalus , cerebral edema, cerebral contusion , epidural hematoma, subdural hem atom a, subarachnoid hemorrhage, intracerebral hematoma, intraventricular hematoma, brain infarction , hydrocephalus and porencephaly.