Unicystic Ameloblastoma (Mural) .
- It arises from the wall of a pre-existing cyst (most commonly from a dentigerous cyst)
- The posterior region of the mandible is the most common location.
- 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.
