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. 2022 Dec 14;92(4):734–744. doi: 10.1227/neu.0000000000002268

TABLE 2.

Radiological Characteristics of the Cohort

Characteristic Category N (%)
Tumor laterality Left 94 (39.8)
Right 96 (40.7)
Midline 46 (19.5)
Skull base Yes 140 (59.3)
No 96 (40.7)
Calcification Absent 139 (66.5)
Partial 45 (21.5)
Diffuse 25 (12.0)
Tumor signal intensity Hyperintense 120 (63.5)
Isointense 50 (26.5)
Hypointense 19 (10.0)
Peritumoral edema Yes 120 (61.5)
No 75 (38.5)
Peritumoral edema relative to tumor volume (%) 0–5 14 (12.1)
6–33 26 (34.5)
34–66 17 (14.7)
67–100 12 (10.3)
>100% 47 (40.5)
Edema volume (cm3) Median (IQR) 39.1 (6.5–85.6)
Edema grade 1 12 (10.3)
2 35 (30.2)
3 69 (59.5)
Edema index Median (IQR) 0.7 (0.1–1.7)
Bone invasion Yes 67 (33.2)
No 135 (66.8)
Hyperostosis Yes 59 (29.2)
No 143 (70.8)
Sinus invasion Separate 103 (48.4)
Direct contact 35 (16.4)
Invading 75 (35.2)
Compressing critical neurovascular structures Yes 83 (38.6)
No 132 (61.4)
Preoperative tumor volume (cm3) Median (IQR) 34.0 (16.0–63.0)
Preoperative tumor diameter (mm) Median (IQR) 22.7 (10.6–42.0)