Brain lesion on PET; done w/o contrast 2/2 creatinine. There are mildly expansive confluent areas of subcortical high T2 signal in the right precentral gyrus and right superior frontal gyrus. The right postcentral gyrus lesion also contains a punctate focus of susceptibility effect. There are a few scattered foci of punctate high T2 signal deeper in the cerebral white matter, which are nonspecific. There is no evidence of an acute infarct. There is diffuse prominence of the right cerebellar hemisphere folia. There is no midline shift or herniation. There is mild maxillary sinus mucosal thickening. The skull, paranasal sinuses, and scalp soft tissues are unremarkable.
1.Mildly expansive confluent areas of subcortical high T2 signal in the right precentral gyrus and right superior frontal gyrus may be related to metastatic disease, although the lesions are incompletely characterized due to the lack of intravenous contrast. 2.Right cerebellar hemisphere volume loss may represent a developmental phenomenon, remote ischemic insult, a post-infectious state, or a neurodegenerative process, for example.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.