Malignant ameloblastoma of the maxilla as an interdisciplinary problem

: The clinico-pathological assessment of three cases of rare dentogenic tumours of the maxilla was made (including one case described earlier). In two patients primary malignant ameloblastoma was diagnosed. In one patient benign ameloblastoma was treated few times; in this case we have observed the transformation of benign disease to malignant because the occurring lymph node metastases. The authors discussed clinical and morphological characteristics of these tumours, which are under interest of many specialists.