Altered mental status, unspecified [R41.82], Reason for Study: ^Reason: Concern for intracranial change compared to prior MRI History: Altered mental status No evidence of acute ischemic or hemorrhagic lesion.Postsurgical changes from prior frontal craniotomy are seen (including bifrontal encephalomalacia, hemosiderin deposition around interhemispheric fissure and frontal small extra-axial fluid collections), unchanged since prior scan.Subtle increased FLAIR high signal intensities on the right middle cerebellar peduncle and right cerebellum are again seen, unchanged.The ventricles, sulci and cisterns are unremarkable. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
1. No evidence of acute ischemic or hemorrhagic lesion.2. Postoperative changes related to prior frontal craniotomy for tumor removal are again seen, unchanged since prior scan.