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Clin Pediatr (Phila). 2005 Mar;44(2):109-19.

Neonatal asymmetric crying facies: a new look at an old problem.

Author information

1
David Geffen School of Medicine at UCLA, Los Angeles, California 91403, USA.

Abstract

Neonatal asymmetric crying facies, described 75 years ago, is a clinical phenotype resembling unilateral partial peripheral facial nerve paralysis, with an incidence of approximately 1 per 160 live births. The cause is either facial nerve compression or faulty facial muscle and/or nerve development. Spontaneous resolution is expected with the former, but not necessarily with the latter etiology. Approximately 10% of the developmental cases have associated major malformations. Mandibular asymmetry and maxillary-mandibular asynclitism (non-parallelism of the gums) are frequently overlooked visual clues to nerve compression. Ultrasound imaging of facial muscles and electrodiagnostic testing may be useful for differential diagnosis and management.

PMID:
15735828
DOI:
10.1177/000992280504400202
[Indexed for MEDLINE]

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