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Table 2: Summary of MRI findings of the 8 patients with NIID
Patient No.
1 2 3 4 5 6 7 8
Cerebrum 
    High-intensity signal along the corticomedullary junction on DWI + + + + + + + +
    Diffuse high-intensity signal of cerebral white matter on FLAIR images + + + + + + + +
Cerebellum 
    Atrophy + + + + + + + +
    High-intensity signal in the medial part of cerebellar hemisphere right beside the vermis on FLAIR images + – + + + + – +
    High-intensity signal in the middle cerebellar peduncle on FLAIR images + + + – – + – –
Note:— – indicates absence of the finding; +, presence of the finding.

	Patient No.
	1	2	3	4	5	6	7	8
Cerebrum
High-intensity signal along the corticomedullary junction on DWI	+	+	+	+	+	+	+	+
Diffuse high-intensity signal of cerebral white matter on FLAIR images	+	+	+	+	+	+	+	+
Cerebellum
Atrophy	+	+	+	+	+	+	+	+
High-intensity signal in the medial part of cerebellar hemisphere right beside the vermis on FLAIR images	+	–	+	+	+	+	–	+
High-intensity signal in the middle cerebellar peduncle on FLAIR images	+	+	+	–	–	+	–	–