Altered mental status, unspecified [R41.82], Reason for Study: ^Reason: seizures History: seizures No evidence of acute ischemic or hemorrhagic lesion.There is about 5.6 mm downward displacement of bilateral cerebellar tonsil through the foramen magnum.The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, restricted diffusion/acute ischemia. 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. About 5.6 mm dominant displacement of bilateral cerebellar tonsil through the foramen magnum.