Table 2

- Meningioma location in 74 patients with WHO grade II meningioma.

LocationsAtypical 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)