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Table 4: Distribution of cortical lesions in patients with isolated cortical hyperintensity
Isolated Cortex Involvement DWI (n = 18) (%) FLAIR (n = 19) (%)
≥2 Regions affected 94 89
    Frontal + parietal 78 47
    Frontal + temporal 67 53
    Parietal + temporal 61 42
    Occipital + parietal 61 32
≥3 Regions affected 89 68
    Frontal + ≥2 neocortical^* 67 42
    Occipital + ≥2 neocortical^* 61 26
    Frontal + parietal + temporal 56 32
    Occipital + parietal + frontal 56 26
    Hippocampus + ≥2 neocortical^* 28 42
Note:—DWI indicates diffusion-weighted imaging; FLAIR, fluid-attenuated inversion recovery.
* Two of frontal/temporal/parietal/occipital.

Isolated Cortex Involvement	DWI (n = 18) (%)	FLAIR (n = 19) (%)
≥2 Regions affected	94	89
Frontal + parietal	78	47
Frontal + temporal	67	53
Parietal + temporal	61	42
Occipital + parietal	61	32
≥3 Regions affected	89	68
Frontal + ≥2 neocortical^*	67	42
Occipital + ≥2 neocortical^*	61	26
Frontal + parietal + temporal	56	32
Occipital + parietal + frontal	56	26
Hippocampus + ≥2 neocortical^*	28	42