Clinical question : Rule out intracranial lesion causing seizures. Signs and symptoms: Seizures Nonenhanced head CT:There is no evidence of acute intracranial hemorrhage, edema, mass effect, midline shift or hydrocephalus.The cortical sulci, ventricular system, CSF cisterns and gray -- white differentiation is within normal.Previously reported periventricular foci of low-attenuation on MRI examination of brain are not identified on this examination.Calvarium demonstrate postoperative changes of bilateral temporal small craniotomies.Extensive paranasal sinuses and mastoid air cells are unremarkable.
Negative nonenhanced head CT. 