Signs and symptoms: left facial droop and altered mental status. Clinical question: Stroke? Non-enhanced CT brain:There is evidence of a large right temporal craniotomy with diffuse area of encephalomalacia in the right anterior and mid temporal. There is ex vacuo dilatation of right temporal horn and trigone of right lateral ventricle.Encephalomalacia of the right occipital lobe of unknown etiology. This finding could represent an old stroke or cytotoxic views the treated metastatic lesion. Clinical information on MRI of brain head was performed after this CT indicated patient's history of metastatic lung cancer.There is no evidence of intracranial hemorrhage, edema, mass-effect, midline shift or hydrocephalus.Calvarium demonstrate changes of right frontal temporal craniotomy and is otherwise unremarkable. Visualized mastoid air cells and middle ear cavities and paranasal sinuses are unremarkable.
1.No evidence of acute intracranial findings.2.Encephalomalacia of in the right temporal lobe under a craniotomy flap are present postoperative change.3.Right occipital encephalomalacia of unknown etiology. Please see above comments.4.Calvarium demonstrate right sided craniotomy and he is otherwise intact.5.Visualized paranasal sinuses, mastoid air cells are unremarkable.