| Multifocal lesions (n = 3) | Focal lesions (n = 3) |
---|---|---|
Location | White and grey matter frontal, parietal and occipital lobe, with thalamic involvement (1) | Brain stem to ventro-medial thalamus (2) |
White matter occipital lobe and optic nerve (1) | Cerebellar hemisphere (1) | |
Corpus nucleus caudatus and temporal lobes (1) | Parietal white matter (1) | |
Margination | Ill-defined (3) | Ill-defined (3) |
Signal intensity | T2W and FLAIR hyperintense (3) | T2W and FLAIR hyperintense (3) |
T1W hypointense (3) | T1W hypointense (2) | |
T1W isointense (1) | ||
Contrast enhancement | Mild and heterogeneous (3) | Moderate heterogenous (2) |
Moderate homogeneous (1) | ||
Perilesional edema | Mild (2) | Mild (1) |
Moderate (1) | Moderate (2) | |
Mass effect | Present (3) | Present (3) |