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.