- Meningioma location in 74 patients with WHO grade II meningioma.
| Locations | Atypical N=60 (81%) | Choroid/ Clear cell N=14 (19%) | P-value |
|---|---|---|---|
| Skull base (n=34) | 26 (76.5) | 8 (23.5) | 0.300 |
| Anterior fossa (n=2) | 2 (100) | 0 (0.0) | |
| Olfactory groove (n=6)Clinoid (n=1) | 6 (100)0 (0.0) | 0 (0.0)1 (100) | |
| Tuberculum selle (n=2) | 2 (100) | 0 (0.0) | |
| Planum sphenoidale (n=8) | 6 (75) | 2 (25) | |
| Petrous (n=2) | 1 (50) | 1 (50) | |
| Sphenoidal wing (n=4) | 2 (50) | 2 (50) | |
| Foramen magnum (n=2) | 2 (100) | 0 (0.0) | |
| CP angle (n=5) | 3 (60) | 2 (40) | |
| Clivus (n=2) | 2 (100) | 0 (0.0) | |
| Convexity (n=23) | 18 (78.3) | 5 (21.7) | 0.711 |
| Frontal (n=12) | 9 (75) | 3 (25) | |
| Temporal (n=7) | 5 (71.4) | 2 (28.6) | |
| Parietal (n=3) | 3 (100) | 0 (0.0) | |
| Occipital (n=1) | 1 (100) | 0 (0.0) | |
| Midline (n=15) | 14 (93.3) | 1 (6.7) | 0.229 |
| Parasagittal (n=6) | 6 (100) | 0 (0.0) | |
| Falx (n=4) | 3 (75) | 1 (25) | |
| Tentorium (n=5) | 5 (100) | 0 (0.0) | |
| Other (n=2) | 2 (100) | 0 (0.0) |