Table 4

- Relationship between pathology features and recurrence rate in patients with WHO grade 2 meningioma.

Pathologic featuresRecurrence N (%)P-value
Atypical meningioma10 (16.6)0.83
4-19 mitotic figures/10 high power fields2 (25)0.87
Brain invasion2 (14.2)0.91
Increased cellularity6 (13.6)0.27
High Nuclear- cytoplasmic ratio6 (13.3)0.28
sheet-like growth7 (22.5)0.70
Necrosis4 (20)0.85
Chordoid/clear cell meningioma2 (14.2)0.85
Ki- 67  
0-5%5 (14.7)0.58
- 6-15%6 (18.2)
- >15%1 (14.3)