Table 1B.

MAPK pathway alterations by tumor type continued.

	Glioneuronal and neuronal tumors
MAPK pathway alteration	Ganglioglioma (126)	Desmoplastic infantile ganglioglioma/astrocytoma (127, 128)	Diffuse leptomeningeal glioneuronal tumor (21, 129, 130)	Multinodular and vacuolating neuronal tumor (21)
FGFR1/2 mutation	5%		+
FGFR1/2 fusion	7.5%			+
NTRK1/2/3 fusion		6%	+
MET fusion
ROS1 fusion
KRAS SNV	5%
NF1 loss	2.5%
BRAF V600E	45%	30%	+
Other BRAF SNV	12.5%	30%		+
KIAA1569::BRAF fusion	5%		72%
Other BRAF fusion	5%
CRAF fusion	2.5%		+
ERK/MAP2K1 SNV				+

+, reported cases.