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Related Experiment Video

Updated: Oct 1, 2025

Identification of OTX1 and OTX2 As Two Possible Molecular Markers for Sinonasal Carcinomas and Olfactory Neuroblastomas
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Noonan syndrome: improving recognition and diagnosis.

Martin Zenker1, Thomas Edouard2, Joanne C Blair3

  • 1Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany martin.zenker@med.ovgu.de.

Archives of Disease in Childhood
|March 5, 2022
PubMed
Summary

Noonan syndrome (NS) is a genetic disorder affecting 1:1000-2500 births. Increasing awareness among healthcare providers can improve early diagnosis and lifelong patient outcomes.

Keywords:
endocrinologygeneticssyndrome

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Area of Science:

  • Genetics
  • Pediatrics
  • Medical Diagnosis

Background:

  • Noonan syndrome (NS) is a rare, dominantly inherited disorder with variable severity.
  • Diagnosis relies on a combination of clinical features, including facial characteristics, short stature, and cardiac defects.
  • Mildly affected individuals are often undiagnosed due to low awareness among healthcare providers and families.

Purpose of the Study:

  • To highlight the importance of early and accurate diagnosis of Noonan syndrome.
  • To propose strategies for increasing awareness of NS among non-specialist healthcare professionals.
  • To emphasize the potential benefits of early recognition and referral for optimizing patient outcomes.

Main Methods:

  • Review of clinical features and diagnostic criteria for Noonan syndrome.
  • Discussion of factors contributing to underdiagnosis.
  • Proposal for enhanced awareness and referral pathways for non-specialist healthcare providers.

Main Results:

  • Noonan syndrome presents with a wide spectrum of symptoms, from asymptomatic adults to severely affected neonates.
  • Underdiagnosis is attributed to limited awareness among healthcare professionals and patient/family reluctance to medicalize.
  • Multidisciplinary care is crucial for managing lifelong, multi-system effects.

Conclusions:

  • Increased awareness of Noonan syndrome among non-specialist healthcare providers is essential for timely diagnosis.
  • Early recognition and referral to specialists can significantly improve developmental and long-term outcomes for patients.
  • A collaborative approach involving non-specialists and specialists ensures optimal care for individuals with Noonan syndrome.