Pathology · single question
Pierre Robin sequence includes all of the following EXCEPT:
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Correct answer: D. Bifid tongue
Pierre Robin sequence consists of: (1) micrognathia, (2) glossoptosis, and (3) U-shaped cleft palate. Bifid tongue is NOT part of PRS.
- A. Glossoptosis results from micrognathia — tongue falls backward obstructing the airway.
- B. Cleft palate is the third classic feature — tongue blocks palate fusion.
- C. Micrognathia is the primary feature of Pierre Robin sequence — the cascade begins here.
- D. CORRECT (the EXCEPT). Bifid tongue is NOT part of Pierre Robin sequence. It may appear in Beckwith-Wiedemann syndrome but not PRS.
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