Table 2

Detailed overview of imaging findings

Imaging characteristicsNumber of patients (%)
Location
 Frontal lobe14 (77.8)
 Parietal lobe4 (22.2)
 Occipital lobe1 (5.6)
 Temporal lobe1 (5.6)
 Basal ganglia1 (5.6)
 Infratentorial1 (5.6)
Involvement of the brain tissue
 White matter only2 (11.1)
 Cortical grey matter only2 (11.1)
 Mixed cortical grey matter/white matter13 (72.2)
 Deep grey matter1 (5.6)
Lesion distribution
 Unilobar12 (66.7)
 Multilobar1 (5.6)
 Widespread5 (27.8)
 Unilateral13 (72.2)
 Bilateral5 (27.8)
Lesion characteristics
 Focal13 (72.2)
 Multifocal
 Confluent5 (28.8)
 Diffuse
Signs of inflammation
 Contrast enhancement2 (13.3)*
 Small (perivascular) lesions7 (38.9)
 Both2 (13.3)*
High-signal intensity on diffusion-weighted imaging
 Yes9 (60)*
 No6 (40)*
  • *Fifteen patients with available diffusion-weighted imaging and contrast-enhanced T1-weighted images.