BRAF and ganglioglioma: However, a marked discordance exists between our results and those reported by Chappé et al. [36], Dougherty et al. [37], and Dahiya et al. [32], who observed the presence of BRAF V600E mutation in 45.2% (14/31), 50% (9/18), and 38.3% (18/47) of pediatric gangliogliomas, respectively.