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Table 3: Patient symptoms and indications for examinations in the 2 groups based on hypointense foci
Hypointense Foci (+) (n = 38) Hypointense Foci (−) (n = 21) n
n % n %
Symptoms or clinical indications for examinations No/follow-up of primary disease 11 52.4 10 47.6 21
Seizures 5 83.3 1 16.7 6
Transient ischemic attack/stroke 5 83.3 1 16.7 6
Dizziness, vertigo 1 25 3 75 4
Headache 4 100 0 0 4
Sensory disturbance 2 66.7 1 33.3 3
Double vision 2 100 0 0 2
Dysarthria 2 100 0 0 2
Nerve palsy 1 50 1 50 2
SDH 1 50 1 50 2
Consciousness disturbance 1 100 0 0 1
ICH 1 100 0 0 1
Visual field disturbance 1 100 0 0 1
SAH 0 0 1 100 1
Syncope 0 0 1 100 1
Trauma 0 0 1 100 1
Unknown 1 0 1
Note:—SDH indicates subdural hematoma.

		Hypointense Foci (+) (n = 38)		Hypointense Foci (−) (n = 21)		n
		n	%	n	%	n
Symptoms or clinical indications for examinations	No/follow-up of primary disease	11	52.4	10	47.6	21
	Seizures	5	83.3	1	16.7	6
	Transient ischemic attack/stroke	5	83.3	1	16.7	6
	Dizziness, vertigo	1	25	3	75	4
	Headache	4	100	0	0	4
	Sensory disturbance	2	66.7	1	33.3	3
	Double vision	2	100	0	0	2
	Dysarthria	2	100	0	0	2
	Nerve palsy	1	50	1	50	2
	SDH	1	50	1	50	2
	Consciousness disturbance	1	100	0	0	1
	ICH	1	100	0	0	1
	Visual field disturbance	1	100	0	0	1
	SAH	0	0	1	100	1
	Syncope	0	0	1	100	1
	Trauma	0	0	1	100	1
	Unknown	1		0		1