Table 2 Radiographic and surgical tumor characteristics of 33 patients
From: Extradural anterior clinoidectomy in surgical management of clinoidal meningiomas
ACMs characteristics | No. of patients | Percentage |
|---|---|---|
Al-Mefty’s classification | ||
Type I | 14 | (42.4%) |
Type II | 17 | (51.5%) |
Type III | 2 | (6.1%) |
Site (Rt/Lt) | 11/22 | 33.3%/66.6% |
Size | ||
Mean (range) | 4.1 (1.8–7.6) | |
< 4 cm | 16 | (48.5%) |
> 4 cm | 17 | (51.5%) |
T2-MRI tumor intensity | ||
Hypointense | 14 | (42.4%) |
Isointense | 7 | (21.2%) |
Hyperintense | 12 | (36.4%) |
Peritumoral edema | 20 | (60.6 %) |
Tumor calcifications | 14 | (42.4%) |
Central or peripheral | 7 | (21.2%) |
Marked | 7 | (21.2%) |
ACP-Hypertrophy | 19 | (57.6%) |
OCI | 24 | (72.7%) |
CS invasion | 8 | (24.2%) |
ICA relation | ||
Group A | 17 | (51.5%) |
Group B | 9 | (27.3%) |
Group C | 6 | (18.2%) |
Group D | 1 | (3.0%) |