In Treacher collin's syndrome there is________________?
Correct answer: D. Poorly developed or absence of malar bones
- A. Upward sloping of the palpebral fissure
- B. No loss of hearing
- C. Progenia and mandibular prognathism
- D. Poorly developed or absence of malar bones
Explanation
Treacher Collins syndrome results from first and second branchial arch abnormalities, producing marked hypoplasia or absence of the malar bones. Hearing loss is common, and the palpebral fissures usually slope downward rather than upward.
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