Collodion baby associated with asymmetric crying facies: a case report.

Collodion baby is a distinct subset of neonatal erythroderma that can be a clinical marker for a variety of underlying abnormalities. The phenotype includes parchment-like hyperkeratosis, pseudocontractures, ectropion, eclabium, absence of eyebrows, and sparse hair. Asymmetric crying facies is caused by congenital hypoplasia or agenesis of the depressor anguli oris muscle. Associations of this facial defect with major congenital anomalies have been reported, most commonly in the cardiovascular system, less frequently involving the genitourinary, musculoskeletal, cervicofacial, and respiratory systems, and rarely the endocrine system. We report a newborn with a collodion membrane and asymmetric crying facies. To the best of our knowledge, this association has not been previously published.