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Radiology · single question

A periapical radiograph near the maxillary central incisors. All of the following are reasonable considerations EXCEPT:

  1. Buccal bifurcation cyst
  2. Nasopalatine duct cyst
  3. Normal anatomic structures (e.g., incisive foramen)
  4. Odontogenic keratocyst
Show answer and explanation

Correct answer: A. Buccal bifurcation cyst

  • A. Correct (the EXCEPTION). The buccal bifurcation cyst occurs on the BUCCAL aspect of MANDIBULAR molars in children — not in the maxillary anterior region.
  • B. Incorrect. A nasopalatine duct cyst is the classic heart-shaped midline radiolucency between the maxillary central incisors.
  • C. Incorrect. The incisive foramen is a normal structure that can mimic a radiolucency here.
  • D. Incorrect. An OKC can occur in the maxillary anterior region and belongs in the differential.

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