Female, 81 years old, with brain lesion. Selected sequences for surgical navigation purposes redemonstrate a lesion in the right frontal lobe with thick rim enhancement and extensive associated edema involving the frontal and parietal lobes as well as the basal ganglia and insula. The size and appearance of this lesion have not significantly changed from prior examination. The degree of mass effect is also stable. Large region of encephalomalacia is redemonstrated within the left parietal lobe compatible with remote infarction. Extensive patchy areas of T2 hyperintensity are also seen in the periventricular regions, basal ganglia and thalami, perhaps representing sequelae of prior ischemic injury. The left mastoid air cells remain significantly opacified.
Redemonstration of a lesion in the right frontal lobe with thick rim enhancement and extensive associated edema.