Female, 72 years old, with adenocarcinoma of the lung and brain metastases, on chemotherapy. Image quality is somewhat reduced relative to the prior examination which reduces sensitivity for lesional changes.Linear enhancement without edema in the right superior parietal lobule may be slightly smaller than on the prior examination, now measuring up to 8 mm, previously 10 mm. A right cerebellar enhancing lesion without edema measures up to 7 mm, previously 7 mm. Three or four small foci of enhancement within the left perirolandic white matter are not as well seen on the present examination which could simply reflect differences in image quality.An enhancing nodule within the left middle frontal gyrus is less well-defined than on the prior examination and difficult to measure accurately. However, the degree of edema associated with this lesion has decreased.No convincing evidence of any new enhancing lesion is seen. Scattered foci of nonenhancing, nonspecific white matter T2 hyperintensity are seen, some of which may be new from prior. No significant mass effect is detected. The ventricular system is stable and within normal limits.
1.No definite evidence of any progression in the numerous previously described enhancing lesions.2.No convincing evidence of any new intracranial lesion is seen. However, the image quality on this examination is somewhat less than on the prior exam, which reduces the accuracy of comparison and the sensitivity for new lesion detection. 