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Two forms of cutis laxa presenting in the newborn period
Insights
Congenital cutis laxa presents as two distinct infant disorders. One is a fatal generalized elastic tissue disorder, while the other involves malformations and developmental delays.
Area of Science:
- Genetics and Developmental Biology
- Pediatric Medicine
- Dermatology
Background:
- Congenital cutis laxa encompasses a spectrum of rare genetic disorders characterized by loose, sagging skin.
- Distinguishing between different forms of cutis laxa is crucial for accurate diagnosis and prognosis.
Observation:
- Two infants with congenital cutis laxa were observed, exhibiting distinct clinical presentations.
- The first infant presented with generalized elastic tissue abnormalities, including hernias, gastrointestinal/urinary tract diverticula, and infantile emphysema, leading to a fatal outcome within the first year.
- The second infant displayed widely patent anterior fontanels, multiple malformations, and significant growth and developmental retardation.
Findings:
- The study identified two unique congenital cutis laxa syndromes in newborns.
- Syndrome 1: A severe, generalized elastic tissue disorder with a poor prognosis, often fatal in infancy.
- Syndrome 2: Characterized by specific craniofacial and developmental anomalies, with a prognosis distinct from dominant forms.
Implications:
- Early recognition of these distinct congenital cutis laxa syndromes is vital for accurate diagnosis in newborns.
- Understanding the recessive inheritance patterns allows for realistic prognostic counseling for affected families.
- Differentiating these severe recessive forms from benign dominant cutis laxa is critical for appropriate clinical management and genetic counseling.
Abstract:
Two infants are described with congenital cutis laxa. They represent two distinct disorders. In the first, congenital cutis laxa is associated with a generalized disorder of elastic tissue in which there may be diaphragmatic or other hernias, diverticula of the gastrointestinal or urinary tract and infantile emphysema. The disease is fatal often within the first year. In the second, congenital cutis laxa is associated with widely patent anterior fontanel, a variety of malformations, and retarded growth and development. Recognition of these distinct syndromes in the newborn period and their recessive inheritance permit realistic discussion of the prognosis which is very different from the benign dominant forms of cutis laxa.