Definition: An aggressive odontogenic epithelium neoplasm that is locally invasive.
Location: Posterior mandible and ramus (most common) but can occur anywhere in the maxilla or mandible.
Edge: Well-defined to well-localized.
Shape: Round to no identifiable shape.
Internal: Radiolucent (unilocular or multilocular). When multilocular it is said to have a ‘honeycomb’ or ‘soap bubble’ appearance.
Other: Tendency to cause resorption of the adjacent teeth and expansion of jaw.
(Click image to enlarge)
Posterior mandible and ramus (multilocular)
Ameloblastoma – ‘soap bubble’ appearance
Ameloblastoma – expansion of mandible