Untreated small brain metastases. There are several, at least 10, enhancing lesions, which are either new or have increased in size. For example, there is a new lesion in the right basal ganglia that measures up to 6 mm and a right occipital lobe lesion now measures up to 5 mm, previously 3 mm. There is no evidence of acute intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. There is fluid signal within the left mastoid air cells. The skull, paranasal sinuses, and scalp soft tissues are unremarkable.
Interval appearance or increase in size of multiple intracranial metastases.