Definition: An aggressive, locally invasive neoplasm originating from odontogenic epithelium.
Radiographic Features:
- Location:
- Most common: Posterior mandible and ramus
- Can occur anywhere in maxilla or mandible
- Edge: Well-defined to well-localized
- Shape: Round to irregular
- Internal:
- Radiolucent
- Unilocular or multilocular
- Multilocular type described as ‘honeycomb’ or ‘soap bubble’ appearance
- Number: Single
Key Diagnostic Signs:
- Radiolucent lesion, often multilocular
- Expansion of jaw
- Root resorption of adjacent teeth
Clinical Significance:
- Locally aggressive with high recurrence rate
- Requires extensive surgical treatment
- Can cause facial deformity if left untreated
- Long-term follow-up essential due to recurrence risk
Note: Differential diagnosis is crucial, as other multilocular radiolucent lesions can mimic ameloblastoma. Biopsy is often necessary for definitive diagnosis. The ‘soap bubble’ appearance, while characteristic, is not unique to ameloblastoma.