PMC7099203_01
MRI Brain: T1 post-contrast sequence with an arrow pointing to an enhancing lesion over the right motor strip.
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This showed two tiny enhancing lesions, one in the right motor strip (Figure 1) and the other in the left parietal region, suspicious for metastases.
PET scan of brain showing increased activity in the left mesial temporal region.
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PET scan of the body found no primary malignancy. PET scan of the brain showed hyperactivity in the left temporal region, suspicious for epileptic activity (Figure 2).
Diffusion MRI sequence showing embolic appearing regions of restricted diffusion (bright white spots) in the left hemisphere.
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Repeat MRI showed new scattered embolic infarcts in the left hemisphere (Figure 3) with disappearance of previously seen enhancing lesions that were thought to be metastases.