Metastatic head and neck cancer treated with 2 cycles of pembrolizumab. There is a punctate focus of enhancement in the right middle temporal gyrus subcortical white matter. There is also a mildly prominent vessel in the right inferior temporal gyrus region. The brain parenchyma otherwise appears unremarkable. There is no evidence of intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
Unchanged nonspecific punctate focus of enhancement in the right middle temporal gyrus subcortical white matter.