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
29
7
17
Meningeal SFT
4
21
3
10
8
n = 25
Extrameningeal SFT
n = 13