Cerebral fat embolism syndrome is a rare complication of trauma, and it particularly involves fractures of the long bones. This syndrome may occur in a diverse series of conditions such as diabetes mellitus, acute hemorrhagic pancreatitis, acute fatty cirrhosis, prolonged corticosteroid therapy, lymphography and liposuction. The author reports the CT and MRI findings in a patient with cerebral fat embolism that occurred as a rare complication of postgastrectomy.