ckground: Secondary clinical manifestations following brain injury may be due to either intracranial hemorrhage or brain edema and brain swelling.But brain swelling hasnt been understand adequately in clinical practice.Objective: 71 patients with brain edema or brain swelling following brain injury admitted to our hospital during Jan 1998 to Dec 1999 were selected for this study.Their CT findings were compared,and CT characters of traumatic brain swelling and neurological function recovery were analyzed emphatically.Unit: Department of Radiology,Guangdong Provincial Corps Hospital,Chinese Peoples Armed Police Forces.