PMC4571614_01
Magnetic resonance imaging brain with contrast and T2 fluid-attenuated inversion recovery (a) and (b) initial magnetic resonance imaging, (c) and (d) 1-month follow-up magnetic resonance imaging
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F1
At 3 weeks from initial presentation, a MRI brain demonstrated an 11 mm peripherally enhancing intra-axial lesion along the right superior temporal gyrus with blood products and vasogenic edema [Figure 1a and b]. A repeat MRI brain 1-month later demonstrated the persisting 10 mm x 4 mm peripherally enhancing lesion with slightly decreased surrounding edema [Figure 1c and d].
Initial negative computed tomography angiogram
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F2
A CT angiogram was negative for vascular pathologies [Figure 2].