 There are postoperative findings related to remote left parietal lobe tumor biopsy. There is an ill-defined, heterogenously enhancing lesion centered in the left parietal lobe with areas of susceptibility effect and surrounding vasogenic edema and extension towards the ependymal surface that appears to have slightly expanded, measuring 28 x 45 mm in axial cross-section, previously 25 x 44 mm. There is unchanged midline shift to the right of 3 mm. There is interval increase in size of an enhancing right cerebellar hemisphere lesion, now measuring up to 15 mm, previously 9 mm. There is a newly apparent ring-enhancing lesion in the left postcentral gyrus that measures up to 5 mm. There is no evidence of acute infarction. The skull and extracranial structures appear unchanged.
1. Slight interval expansion of the lesion centered in the left parietal lobe with extensive surrounding vasogenic edema and/or gliosis that may represent metastasis and/or radiation necrosis.2. Increase in size of a right cerebellar hemisphere metastasis.3. New subcentimeter left postcentral gyrus metastasis. 