Table 1:

Demographic data for 34 patients with untreated intracranial AVM

Patient No.	Sex	Age at MR Imaging (years)	Location of Nidus	Hemorrhage	Perifocal Hyperintensity	Neurologic Symptoms	Spetzler-Martin Grade
1	F	29	Right occipital	No	No	No	2
2	M	31	Right frontal	No	No	No	1
3	F	27	Left occipital	No	Yes	Right homonymous hemianopsia	3
4	M	64	Right occipital	No	No	No	2
5	M	49	Left frontal	No	Yes	No	2
6	M	72	Left parietal	No	No	No	1
7	M	25	Left occipital	No	No	No	2
8	M	45	Right frontal	No	Yes	No	3
9	M	28	Left frontal	No	No	No	3
10	M	49	Left putamen	No	No	No	2
11	M	25	Right temporal	No	Yes	No	2
12	M	28	Right occipital	No	No	Left lower quadranopsia	4
13	F	5	Left parietal	No	No	No	1
14	M	59	Right frontal	No	Yes	No	1
15	F	28	Right parietal	No	No	No	2
16	M	45	Left cingulum	No	No	No	2
17	F	33	Right cingulum	No	No	No	4
18	F	29	Left frontal	No	No	No	2
19	M	28	Right insula	No	No	No	4
20	F	17	Left cerebellum	No	Yes	Cerebellar ataxia	3
21	F	20	Left frontal	No	No	No	3
22	F	45	Right occipital	Yes	No	No	3
23	F	29	Left occipital	Yes	No	No	2
24	M	22	Right cerebellum	Yes	No	Cerebellar ataxia	4
25	F	15	Right occipital	Yes	No	No	3
26	F	56	Right cerebellum	Yes	Yes	Cerebellar ataxia, right trigeminal palsy	1
27	M	45	Right parietal	Yes	Yes	Recent memory disturbance	3
28	F	21	Right occipital	Yes	Yes	Left upper quadranopsia	2
29	F	27	Right parietal	Yes	Yes	Left hemianopsia	2
30	F	6	Right frontal	Yes	Yes	Left hemiparesis (MMT4/5)	2
31	M	38	Right parietal	Yes	No	Left hemiparesis (MMT 4/5)	2
32	M	50	Left frontal	Yes	Yes	Motor aphasia	5
33	F	23	Right frontal	Yes	Yes	Left hemiparesis (MMT 4/5)	2
34	M	48	Left parietal	Yes	Yes	Right hemiparesis (MMT 3/5), right spatial neglect	3

Note:—M indicates male; F, female; MMT, manual muscle testing. Patients 1–21 were without intracranial hemorrhage, and patients 22–34 displayed hemorrhage.