Defining characteristics: A pathologic periapical lucency can appear as a widening of the periodontal ligament space in the apical region, loss of lamina dura at the apex, or diffuse/irregular radiolucency at the apex. It should be differentiated from a benign lucency such as a chevron lucency. A radiolucent area has been detected at the apex of a tooth root and most likely represents a pathologic process
Common differential diagnoses: Abscess, cyst, inflammatory disease
Helpful additional data: Is there any swelling on the face? Has the patient been reluctant to eat? Is there a foul odor in the mouth? Has there been excessive drooling or salivation
