Pathogenesis and Nomenclature of Odontogenic Carcinomas: Revisited

Table 4

Classification of ameloblastic carcinomas by Kruse et al. in 2009 [11].

Types	Ameloblastic carcinomas
1	Malignant ameloblastoma; a: metastases with features of an ameloblastoma (well differentiated); b: metastases with malignant features (poorly differentiated)
2	Ameloblastic carcinoma arising from an ameloblastoma; a: without metastases (malignant ameloblastoma); b: metastases with features of an ameloblastoma (well differentiated); c: metastases with malignant features (poorly differentiated)
3	Ameloblastic carcinoma with unknown origin histology (de novo); a: without metastases; b: metastases with features of an ameloblastoma (well differentiated); c: metastases with malignant features (poorly differentiated)