Noonan's syndrome is an autosomal dominant genetic disorder with high phenotypic variability, characterized mainly by facial dysmorphism, congenital heart disease and short stature. We describe the case of a male patient diagnosed with Noonan's syndrome and peripheral spondyloarthritis, a previously undescribed association in the literature.
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http://dx.doi.org/10.1016/j.reuma.2013.10.008 | DOI Listing |
Genet Med
January 2025
Division of Human Genetics, Children's Hospital of Philadelphia; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Purpose: Noonan syndrome and related disorders (NS) are multisystemic conditions affecting approximately 1:1000 individuals. Previous natural history studies were conducted prior to widespread comprehensive genetic testing. This study provides updated longitudinal natural history data in participants with molecularly confirmed NS.
View Article and Find Full Text PDFPurpose: Genomic ascertainment of electronic health record-linked exome data in two large biobanks was used to quantify germline pathogenic/likely pathogenic (P/LP) variant prevalence, cancer prevalence, and survival in adults with non- RAS/mitogen-activated protein kinase genes (RASopathies).
Patients And Methods: Germline RASopathy variants were examined from adult participants in UK Biobank (UKBB; n=469,802), Geisinger MyCode (n=167,050) and Mount Sinai Bio (n=30,470). Variants were classified as per American College of Medical Genetics/Association for Molecular Pathology criteria and reviewed by a RASopathy variant expert.
Cardiol Young
January 2025
Department of Pediatric Cardiology, Arnold Palmer Hospital for Children, Orlando, FL, USA.
Coronary ectasia is a very rare phenomenon seen in Noonan syndrome with only a few documented case reports. We describe a 14-year-old with Noonan syndrome and tetralogy of Fallot with described coronary artery ectasia since infancy who presented for possible transcatheter pulmonary valve placement and was found to have severe ectasia of bilateral coronary arteries.
View Article and Find Full Text PDFRasopathies, including Noonan Syndrome (NS) and Neurofibromatosis type 1 (NF1), are developmental disorders caused by germline mutations in genes of the RAS/mitogen-activated protein kinase pathway (RAS-MAPK). This study investigates irritability, a highly prevalent transdiagnostic construct, in children with Rasopathies and the impact of Rasopathy status on the associations between irritability, emotional dysregulation-related disorders, and social skills impairments. The sample comprise 174 children aged 4-17 (age mean = 9.
View Article and Find Full Text PDFCardiol Young
January 2025
Department of Pediatrics, Division of Cardiology, Loma Linda Children's Hospital, Loma Linda, CA, USA.
We describe a case of novel use of trametinib in treating arrythmia without concomitant cardiomyopathy. Our patient is a two-year-old female born with Costello syndrome due to heterozygous mutations in the HRAS gene c34 G > T p (G12C). Shortly after birth, she was diagnosed with multifocal atrial tachyarrhythmia.
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