Odontogenic keratocyst (multilocular) .

  • The characteristic feature of odontogenic keratocyst is that the epithelium lining the cystic cavity is keratinized or parakeratinized.
  • Most common location: the posterior area of the mandible, the angle and the mandibular ramus.
  • It may occur at any age but mostly develops during the second and third decades of life.
  • The lesion may become large in size. It grows along the internal aspect of the jaws, causing thinning or even perforation of the cortical plates.
  • Radiographically, small lesions are usually unilocular (often with scalloped margins), while larger lesions are multilocular with soap bubbles or honeycomb appearance.
  • Odontogenic keratocyst has the tendency for recurrence after inadequate surgery.
  • Adjacent teeth are usually  vital and rarely resorbed.

Case 1

Panoramic images: Three cases of Odontogenic keratocyst (multilocular)

Case 2

CBCT images: Two different cases of a large odontogenic keratocyst on the left side of the mandible.

Case 3

Large odontogenic keratocyst on the right side of the mandible.

Case 4

Odontogenic keratocysts in upper and lower jaw.