mandibulofacial dysostosis

noun
man·di·bu·lo·fa·cial dysostosis | \man-ˌdib-yə-lō-ˌfā-shəl- \

Medical Definition of mandibulofacial dysostosis 

: a dysostosis of the face and lower jaw inherited as an autosomal dominant trait and characterized by bilateral malformations, deformities of the outer and middle ear, and a usually smaller lower jaw

called also Treacher Collins syndrome

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