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GTR Home > Tests > Marfan syndrome and Loeys-Dietz syndrome NGS panel

Indication

This is a clinical test intended for Help: Diagnosis, Mutation Confirmation

Clinical summary

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Imported from GeneReviews

Loeys-Dietz syndrome (LDS) is characterized by vascular findings (cerebral, thoracic, and abdominal arterial aneurysms and/or dissections), skeletal manifestations (pectus excavatum or pectus carinatum, scoliosis, joint laxity, arachnodactyly, talipes equinovarus, cervical spine malformation and/or instability), craniofacial features (widely spaced eyes, strabismus, bifid uvula / cleft palate, and craniosynostosis that can involve any sutures), and cutaneous findings (velvety and translucent skin, easy bruising, and dystrophic scars). Individuals with LDS are predisposed to widespread and aggressive arterial aneurysms and pregnancy-related complications including uterine rupture and death. Individuals with LDS can show a strong predisposition for allergic/inflammatory disease including asthma, eczema, and reactions to food or environmental allergens. There is also an increased incidence of gastrointestinal inflammation including eosinophilic esophagitis and gastritis or inflammatory bowel disease. Wide variation in the distribution and severity of clinical features can be seen in individuals with LDS, even among affected individuals within a family who have the same pathogenic variant.

Clinical features

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Imported from Human Phenotype Ontology (HPO)

  • Arachnodactyly
  • Chiari malformation
  • Talipes equinovarus
  • Craniosynostosis syndrome
  • Patent ductus arteriosus
  • Proptosis
  • Exotropia
  • Atrial septal defect
  • Hydrocephalus
  • Hypertelorism
  • Micrognathia
  • Mitral valve prolapse
  • Retrognathia
  • Scoliosis
  • Joint laxity
  • Bicuspid aortic valve
  • Pulmonary artery aneurysm
  • Bicuspid pulmonary valve
  • Dilatation of the ductus arteriosus
  • Cervical spine instability
  • Postaxial hand polydactyly
  • Blue sclerae
  • Global developmental delay
  • Camptodactyly
  • Aortic root aneurysm
  • Descending thoracic aorta aneurysm
  • Dermal translucency
  • Ascending aortic dissection
  • Disproportionate tall stature
  • Soft skin
  • Malar flattening
  • Abnormal sternum morphology
  • Cleft palate
  • Arterial tortuosity
  • Intellectual disability
  • Dilatation of the cerebral artery
  • Bifid uvula
  • Eosinophilic infiltration of the esophagus
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Conditions tested

Target population

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Individuals whose clinical findings are consistent with the specific disorder.

Citations

Not provided

Clinical validity

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Not provided

Clinical utility

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Not provided

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