Abstract
Four cases of first branchial arch defects are presented. The literature relating to such defects is reviewed and a possible embryogenic mechanism is proposed with particular reference to the disposition of the facial nerve. The classification of these defects into Types I and II by Work (1972) is supported.
Publication types
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Case Reports
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Research Support, Non-U.S. Gov't
MeSH terms
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Branchial Region / abnormalities*
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Branchial Region / embryology
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Branchioma / embryology
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Child, Preschool
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Ear, External / abnormalities
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Facial Nerve / pathology
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Female
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Head and Neck Neoplasms / embryology
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Humans
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Infant
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Male
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Middle Aged