Table 1:

Demographic and tumor characteristics patients with head and neck paragangliomas

	SDH Mutation–Positive	SDH Mutation–Negative	P Value
No. of lesions	30	18	NA
Sex (male/female)	7:16	2:15	.37
Age (mean) (yr)	43.9 (SD, 16.2) (23 patients)	56.9 (SD, 10.7) (17 patients)	.007
Maximum diameter (median) (IQR) (mm)	26.5 (20.6–33.0)	24.4 (21.2–36.0)	.68
Salt-and-pepper appearance	24/30	13/18	.72
Ratio of head/neck region	13:17	13:5	.07
Adjacent osseous erosive changes of head region	13:13	12:13	1
Necrotic or cystic changes	18/30	10/18	.77

Note:—NA indicates not applicable; IQR, interquartile range.