The term plexiform unicystic ameloblastoma refers to a pattern of epithelial proliferation that has been described in cystic cavity. Because of unilocular presentation, it is commonly misdiagnosed as an odontogenic cyst. However, they may often behave clinically as biologically aggressive tumors. These tumors show high incidence of cortical perforation, tooth resorption and a high rate of recur...

The aneurysmal bone cyst (ABC) rarely occurs in the jaws. It represents approximately 1.5% of all non-odontogenic and non-epithelial cysts of the jaws. The literature contains conflicting reports on the clinical and radiological features of ABC of the jaws. The radiographic appearance of ABC varies from a unicystic radiolucency or moth-eaten radiolucency to an extensive multilocular lesion. In ...

Desmoplastic ameloblastoma (DA) is a benign but locally invasive variant of the solid/multicystic ameloblastoma (SMA). In the recent World Health Organization classification of odontogenic tumours, DA has been characterised as a variant, with specific clinical, radiographic and histopathological features. A possible 'transitional' form of DA, showing microscopic features of the desmoplastic var...