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Causes of midface hypoplasia?
Goldenhar syndrome; Pierre Robin sequence; Pfeiffer syndrome; Apert syndrome; Treacher Collins syndrome.
- atretic external auditory canal with hypoplastic middle ear and absent ossicles
- midline cleft palate
- underdeveloped zygomatic and pterygoid part
- hypoplastic mandible and maxilla
- anterior concavity of mandible
- hypoplastic left parotid
- parotid duct calculi