Anatomy & Histology · single question
Pierre Robin sequence characteristics include all of the following EXCEPT:
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Correct answer: A. Bifid tongue
- A. Correct. Bifid tongue is NOT a feature of Pierre Robin sequence. The classic triad is micrognathia + cleft palate + glossoptosis. Bifid tongue is associated with other conditions (Beckwith-Wiedemann syndrome, certain syndromes) — not Pierre Robin.
- B. Cleft palate is a classic feature — occurs due to the tongue preventing palatal shelf fusion.
- C. Glossoptosis (tongue falling back, obstructing airway) is the dangerous component of Pierre Robin sequence causing airway obstruction.
- D. Micrognathia (underdeveloped mandible) is a cardinal feature of Pierre Robin sequence.
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