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Polycystic kidney disease, biliary dysgenesis in a patient with Larsen's syndrome
S Kurtoglu1, M Dundar, I K Hallaç
1Department of Pediatrics, School of Medicine, Erciyes University, Kayseri, Turkey.
Insights
This report details a severe Larsen-like syndrome case in an infant, presenting with infantile polycystic kidney disease, biliary dysgenesis, and osteosclerosis. This highlights a rare, complex presentation of genetic disorders in neonates.
Area of Science:
- Genetics
- Pediatric Nephrology
- Skeletal Dysplasias
Background:
- Larsen's syndrome is a rare genetic disorder characterized by joint dislocations, facial anomalies, and clubfoot.
- It presents in autosomal dominant and recessive forms, with varying severity.
- Infantile polycystic kidney disease (IPKD) is a severe, often fatal, autosomal recessive disorder affecting the kidneys.
Observation:
- The study reports on an infant diagnosed with a severe, lethal Larsen-like syndrome.
- This infant also presented with infantile-type polycystic kidney disease.
- Additional observed anomalies included biliary dysgenesis and osteosclerosis.
Findings:
- This case represents a unique and severe co-occurrence of Larsen-like syndrome and infantile polycystic kidney disease.
- The combination of skeletal dysplasia, renal cystic disease, biliary malformation, and bone ossification issues points to a complex genetic etiology.
- The presentation suggests a potential overlap or shared pathway in the pathogenesis of these conditions.
Implications:
- This case expands the known phenotypic spectrum of Larsen syndrome and IPKD.
- It underscores the importance of comprehensive genetic and phenotypic evaluation in neonates with multiple congenital anomalies.
- Further research may elucidate shared genetic factors or developmental pathways involved in these rare conditions.
Abstract:
Larsen's syndrome is characterised by multiple joint dislocations, flat face and talipes equinovarus. There is an autosomal dominant form and also a more severe autosomal recessive form. Several types of polycystic kidney disease have been reported in children. In this report we present an infant with a severe form of Larsen's syndrome (thought to be lethal Larsen-like), infantile-type polycystic kidney disease, biliary dysgenesis and osteosclerosis.