BRAF and urothelial carcinoma: Oncogenic BRAF mutations are very rare in ovarian cancer (<1%), gastric cancer (1%), cholangiocarcinoma (3%), pancreatic cancer (2%), urothelial carcinoma (4%), and glioblastoma (2%), most of these mutations being non-V600E, except in glioblastoma [62] (Cbioportal: www.cbioportal.org).