Table 1.

Cases included in GTNI study cohort listed with patient age at first diagnosis, sex, histopathological grade (Grade), Sequenom^® genotyping result (Sequenom) and IHC for IDH1 R132H (R132H IHC)

Case	Age	Sex	Grade	Sequenom	R132H IHC
1	70	M	LG	R132H	NA
2^a	40	M	HG: MVP/NEC	R132H	NA
3^a	57	M	LG	R132H	NA
4^a	56	M	HG	R132H	NA
5^a	40	M	LG	R132H	+
6^a	38	M	LG	R132H	+
7^a	47	M	LG	R132H	+
8	43	F	LG	R132H	NA
9	40	M	HG	NA	+
10^a	41	M	LG	R132H	+
11	53	F	HG	NA	+
12	29	F	HG	R132H	+

M male, F female, LG low-grade, HG high-grade, MVP microvascular proliferation, NEC necrosis, R132H IDH1 R132H mutation

^aCases included in a previous study of 1p/19q co-deletion in GTNI [3]