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.