Mural Ameloblastoma .
- It arises from the wall of a pre-existing cyst (most commonly from a dentigerous cyst)
- Most common site: The posterior region of the mandible
- Pericoronal radiolucency associated with an unerupted or displaced tooth (usually mandibular 3rd molar).
- It may cause root resorption of the adjacent teeth and buccal/lingual expansion.
