Table 1.

Summary of results from immunostaining of PKCα and phospho-Akt S473 in 5 benign (WHO grade I) merlin-deficient meningiomas and 4 vestibular schwannomas

Case no.PKCαPhospho-Akt (S473)
MN 1034++++
MN 2805+++
MN 2896+++/++
MN 3633++/++++
MN 1670+++
VS 3924++
VS 4206+/++
VS 4231++
VS 4787++–/+
Arachnoid+++/++
TSC-AML

NOTE: Staining was scored semiquantitatively: −, negative; +, weak; ++, medium; +++, strong.

Abbreviations: MN, merlin-deficient meningiomas; VS, vestibular schwannomas.