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case_images: The contrast-enhanced computed tomography scans showing a cystic-like
  lesion at the level of the internal capsule on the left side.
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case_images: The brain CT scan revealed a left-sided lesion in the level of the basal ganglia invading the internal capsule with edema (Figure 1).
case_images: The coronal view on the T1WI shows a peripheral hyperintense rim with
  hypointense signals within the lesion.
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case_images: On T1WI, the peripheral rim of the lesion showed hyperintensity with hypointense content (Figure 2).
case_images: The post-Gd, T2 FLAIR and DWI sequences of the lesion, showing peripheral
  rim enhancement with surrounding white matter edema.
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case_images: It is important to mention that surrounding white matter edema was observed in the above-mentioned sequences (Figure 3).
case_images: The microscopic findings and features of the biopsied tissue, showing
  confluent central necrosis containing necrotic debris and neutrophils as
  well as poor demarcation from the adjacent brain parenchyma.
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case_images: There were small areas of edematous brain tissue also present with swollen reactive astrocytes, but with no obvious granulation tissue formation (Figure 4).
case_images: The control postoperative magnetic resonance imaging scans after 3 months
  show a significant regression of the lesion.
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case_images: The patient had a control brain MRI in 3 months and the MRI scans showed a significant decrease in the mass of the lesion as well as a significant decrease in the peripheral edema (Figure 5).
case_images: The contrast-enhanced magnetic resonance imaging scans after 1 year show
  a complete regression of the lesion on the left side. Some artifacts of
  the biopsy can be seen in the surroundings of the surgical site.
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case_images: The patient was controlled after 1 year, the physical examination did not reveal any neurological deficits, and the contrast-enhanced brain MRI showed a complete regression of the lesion (Figure 6).