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Ameloblastoma (circumscribed)

Ameloblastoma (circumscribed)

  • Benign but locally aggressive odontogenic tumor. It normally grows slowly as a painless swelling of the affected side.
  • It may occur at any age.
  • It invades locally the surrounding bone.
  • 80-95% are found in the mandible (posterior region and ramus ). In the maxilla usually in the premolar or molar region.
  • the small lesions are unilocular. Larger lesions may become multilocular (soap bubbles or honeycomb appearance).
  • Smooth, well-defined, well-corticated borders.
  • Adjacent teeth are often displaced and resorbed.
  • It causes extensive bone expansion.
  • Incomplete removal of the lesion can result in recurrence.

Differential diagnosis