Clinical question: Persistent nausea without clear etiology. Rule out mass/neural cause. Signs and symptoms: Nausea Nonenhanced head CT:Examination demonstrates several periventricular and subcortical nonspecific foci of low attenuation of white matter. As was noted on prior MRI examination these findings are suggestive of demyelinating disease. There is no evidence of hemorrhage, edema, mass-effect, midline shift or hydrocephalus.The cortical sulci and ventricular system remain normal for patient stated age.Calvarium is intact. Visualized paranasal sinuses, mastoid air cells and middle ear cavities are unremarkable.
1.Periventricular and subcortical white matter low-attenuation and white matter consistent with patient's known multiple sclerosis.2.No evidence of acute intracranial hemorrhage, edema, mass-effect, midline shift or hydrocephalus.