Unspecified convulsions [R56.9], Reason for Study: ^Reason: r/o structural lesion History: seizures There is no evidence of acute ischemic or hemorrhagic lesion on this scan.There is no mass lesion either.About 3mm caudal descent of cerebellar tonsil is seen.The ventricles, sulci and cisterns are symmetric and unremarkable. The gray-white matter differentiation is normal. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, or restricted diffusion/acute ischemia. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
About 3mm caudal descent of cerebellar tonsil otherwise unremarkable brain MRI.