Sapin Samuel O, Miller Alvin A, Bass Harold N
David Geffen School of Medicine at UCLA, Los Angeles, California 91403, USA.
Clin Pediatr (Phila). 2005 Mar;44(2):109-19. doi: 10.1177/000992280504400202.
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.
75年前被描述的新生儿不对称哭泣面容，是一种类似于单侧部分周围性面神经麻痹的临床表型，发病率约为每160例活产中有1例。病因要么是面神经受压，要么是面部肌肉和/或神经发育异常。前者有望自发缓解，但后者病因则不一定。约10%的发育性病例伴有严重畸形。下颌不对称和上颌-下颌不同步（牙龈不平行）是神经受压时经常被忽视的视觉线索。面部肌肉超声成像和电诊断测试可能有助于鉴别诊断和处理。
