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.
 
    					
    					    				
