BRAF and melanoma: By contrast, the genetic profiles of Spitz melanoma (mutations in HRAS and kinase fusions in ROS1, NTRK1, NTRK3, ALK, BRAF, MET, and RET) (12, 13) as well as of melanoma arising in blue nevus (mutations in the Gαq signalling pathway) (19, 27) are not encompassed within the TCGA classification.