Answer is D.
Traumatic bone lesions (hemorrhagic or extravasation cysts) are localized areas of bone necrosis that are purported to result from intramedullary hematomas that do not become organized. The intraosseous hemorrhage is thought to be related to a traumatic incident. The bone lesions are discovered during a routine dental exam (not a pain related visit). They appear as a well-defined radiolucency most frequently near the apices of teeth but are NOT related to periapical inflammation. The teeth in the vicinity will test positive for vitality and thus be differentiated from apical periodontal cysts. Exposure of a traumatic bone cyst will reveal a DRY bony cavity with no cystic lining.
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