Persistent response to vemurafenib in metastatic ameloblastoma with BRAF mutation: a case report oleh Morgane Broudic-Guibert, Jean-Yves Blay, Léa Vazquez, Alexandre Evrard, Marie Karanian, Sophie Taïeb, Natalie Hoog-Labouret, Céline Mahier Ait Oukhatar, Rania Boustany-Grenier, Antoine Arnaud