Clinical question: evaluate interval change. Signs and symptoms: Same. Unenhanced head CT:There is no evidence of intracranial hemorrhage, mass-effect, midline shift or hydrocephalus. Previously noted multiple foci of low attenuation of the cortex of bilateral posterior frontal lobes, bilateral basal ganglia are poorly visualized. There is only very subtle mass effect of the left high convexity posterior frontal area of cortical/subcortical edema. This is similar to prior MRI exam from 8 -- 4 -- 11. The ventricular system remain within normal range of size and unchanged since prior exam.
1.No evidence of an acute new findings on this nonfused portable head CT.2.Bilateral hemispheric foci of high signal intensity noted on prior MRI appear as foci of low-attenuation on CT and without any definitive appreciable interval change.