malignant ameloblastoma

malignant ameloblastoma

A neoplasm in which the pattern of an ameloblastoma and cytological features of malignancy are shown by the primary growth in the jaws and/or by any metastatic growth. Tumours meeting these criteria may arise as a result of malignant change in a pre-existing ameloblastoma, or possibly as a primary malignant ameloblastoma not preceded by an ameloblastoma.
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References in periodicals archive ?
Malignant ameloblastoma distinguishes from ameloblastoma by the presence of metastases.
Ameloblastic carcinomas seem to be more common compared to malignant ameloblastoma in the ratio 2:1.
Naagai divided the malignant tumours with features of ameloblastoma into two groups: 1) malignant ameloblastoma 2) ameloblastic carcinoma.