PMC3417813_01
Magnetic resonance imaging (MRI) of the brain was negative for metastatic disease, reversible posterior leukoencephalopathy, leptomeningeal disease, and infection. The small focus of increased signal consistent with edema on FLAIR images (white arrow) on our patient's MRI is superficial and appears to be bisected by a blood vessel (black arrow)
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F1
Magnetic resonance imaging (MRI) of the brain was negative for metastatic disease, reversible posterior leukoencephalopathy (RPLS), leptomeningeal disease, and infection (Fig. 1). The small focus of increased signal consistent with edema on FLAIR images (white arrow) on our patient's MRI is superficial and appears to be bisected by a blood vessel (black arrow) (Fig. 1).
Follow-up contrast enhanced CT of the brain
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F2
A nonspecific 11 mm focus of increased signal of the dura located over the right post-central gyrus was noted on fluid-attenuated inversion recovery images (FLAIR), although these findings were not seen 6 days later on follow-up contrast-enhanced CT (Fig. 2).