The positive expression of Slug in ≥10% of tumor cells was restricted to SFT (5/10; 50%, P = 0.0004) and HPC (9/10; 90%, P<0.0001) cases and no meningiomas showed Slug expression, except for 1 atypical meningioma case (Fig.2, Table 1). This evidence concerns the gene SNAI2 and meningioma.