Radiology · single question
A panoramic radiograph showing radiolucency scalloped around the roots of premolars is most consistent with:
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Correct answer: D. Traumatic bone cyst
- A. Periapical abscess appears as a round radiolucency at the apex of a single tooth, not scalloping around multiple roots.
- B. Dentigerous cyst is associated with an unerupted tooth's crown, not scalloping around premolar roots.
- C. Ameloblastoma typically shows a soap-bubble or multilocular appearance, not scalloping around roots of erupted teeth.
- D. Correct. Traumatic bone cyst (simple bone cyst) classically shows a radiolucency that scallops between and around the roots of vital teeth. It is most common in the premolar-molar region. Treatment is surgical entry (aspiration/exploration) — blood fills the cavity and heals.