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Table 1: Patient demographics and tumor characteristics in schwannomas and paragangliomas^{^a}
Schwannomas(n = 15) Paragangliomas(n = 27) P Value
No. 15 27 NA
Sex (male/female) 5:10 7:20 .73
Age (yr) 42.2 (SD, 15.1) 48.2 (SD, 17.2) .27
Maximum diameter (mm) 31.4 (SD, 15.4) 32.3 (SD, 15.6) .76
Presence of vascular flow voids (salt-and-pepper appearance) 2/15 18/27 .001^{^b}
Cystic or necrotic change 5/15 14/27 .34
Enhancement pattern (homogeneous enhancement/total) 10/15 8/27 .027^{^b}
Location (head lesion/total) 5/15 11/27 .75
Note:—NA indicates not applicable.
↵a Values are mean (SD).
↵b P < .05.

	Schwannomas(n = 15)	Paragangliomas(n = 27)	P Value
No.	15	27	NA
Sex (male/female)	5:10	7:20	.73
Age (yr)	42.2 (SD, 15.1)	48.2 (SD, 17.2)	.27
Maximum diameter (mm)	31.4 (SD, 15.4)	32.3 (SD, 15.6)	.76
Presence of vascular flow voids (salt-and-pepper appearance)	2/15	18/27	.001^{^b}
Cystic or necrotic change	5/15	14/27	.34
Enhancement pattern (homogeneous enhancement/total)	10/15	8/27	.027^{^b}
Location (head lesion/total)	5/15	11/27	.75