“…The classification and terminology used to designate COC have evolved historically (Gorlin et al., ; Gold, ; Fejerskov & Krogh, ; Freedman, Lumerman, & Gee, ; Praetorius, Hjørting‐Hansen, Gorlin, & Vickers, ; Ellis & Shmookler, ; Colmenero, Patron, & Colmenero, ; Hirshberg, Kaplan, & Buchner, ; Shear, ; Toida, ). Therefore, inconsistencies in the terminology have occurred over time, reflecting the lack of precise knowledge about the pathogenesis, histology and behaviour of the lesions, as well as the overlapping definitions of tumours and cysts (Yukimori et al., ). In 2005 and until 2017, the WHO reclassified two odontogenic cysts (odontogenic keratocyst and COC) as neoplasms.…”