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Table 2 Classifications of ameloblastic carcinoma by Elzay (1982) and Slootweg & Müller (1984) and the novel classification

From: New classification of maxillary ameloblastic carcinoma based on an evidence-based literature review over the last 60 years

Type

Elzay(1982)[32]

Slootweg & Müller(1984)[33]

Kruse et al.(2009)

1

Arising from an odontogenic cyst

Primary intraosseous carcinoma ex odontogenic cyst

Malignant ameloblastoma

1a

-

-

Metastase with features of an ameloblastoma (well differentiated)

1b

-

-

Metastase with malignant features (poorly differentiated)

2

Arising from an ameloblastoma

 

Ameloblastic carcinoma arising from an ameloblastoma

2a

Well differentiated (malignant ameloblastoma)

Malignant ameloblastoma

Without metastase

2b

Poorly differentiated (ameloblastic carcinoma)

Ameloblastic carcinoma, arising de novo, ex ameloblastoma or ex odontogenic cyst

Metastase with features of an ameloblastoma (well differentiated)

2c

  

Metastase with malignant features (poorly differentiated)

3

Arising de novo

Primary intraosseous carcinoma de novo

Ameloblastic carcinoma with unknown origin histology

3a

No keratinizing

No keratinizing

Without metastase

3b

Keratinizing

Keratinizing

Metastase with features of an ameloblastoma (well differentiated)

3c

  

Metastase with malignant features (poorly differentiated)