The typically benign odontogenic tumor known as ameloblastoma was first recognized in 1827 by Cusack but did not yet have any designation.[9] In 1885, this kind of odontogenic neoplasm was designated as an adamantinoma by Malassez[10] and was finally renamed to the modern name ameloblastoma in 1930 by Ivey and Churchill.[11][12] Some authors still confusingly misuse the term adamantinoma to describe ameloblastomas, although they differ in histology and frequency of malignancy.[citation needed]