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Table 1 ALDH1 IHC data for SFT (meningeal and extrameningeal) and meningeal HPC

From: ALDH1 is an immunohistochemical diagnostic marker for solitary fibrous tumours and haemangiopericytomas of the meninges emerging from gene profiling study

   ALDH1 negative ALDH1 positive ALDH1 5-10% ALDH1 11-50 ALDH1 >50%
Meningeal HPC grade II n = 24 6 18 5 2 11
n = 55 grade III n = 31 2 29 5 7 17
Meningeal SFT   4 21 3 10 8
n = 25  
Extrameningeal SFT   2 11 3 4 4
n = 13