In the clinical setting, promising data on redifferentiation have been obtained with new compounds targeting BRAF or MEK, such as Vemurafenib, Dabrafenib, Trametinib, and Selumetinib, though the anti-tumor effect is variable, ranging from a partial to a null response, possibly due to the histopathological and genetic heterogeneity of mutated tumors [11–19]. The gene discussed is BRAF; the disease is neoplasm.