Features:

   •       Well-defined, round or ovoid radiolucency at the apex (root tip) of a nonvital tooth

   •       May have a thin radiopaque (sclerotic) border

   •       Can cause expansion of cortical plates if large

 

Demographics:

   •       Most common cystic lesion of the jaws

   •       Typically found in adults; often in the third to fifth decades

 

Presentation:

   •       Usually asymptomatic unless secondarily infected

   •       May be discovered incidentally on routine radiographs

   •       Associated tooth often has a history of caries or trauma

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