Map2k1 Related Noonan Syndrome Cn381210
A genetic syndrome caused by mutations in the MAP2K1 gene, part of the Noonan syndrome family. It can cause heart defects, developmental delays, and distinctive facial features. Treatment addresses specific health concerns.
Key facts at a glance
- ICD-10
- Q89.9
- ICD-11
- LA00.0
- Body system
- congenital
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(congenital)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Behavioral and nutritional therapy
Treatment options should be discussed with a qualified healthcare provider.
Cardiac surveillance
Regular echocardiograms and electrocardiograms to monitor for hypertrophic cardiomyopathy and pulmonary valve stenosis, which are common cardiac manifestations in Noonan syndrome. Early detection allows for timely intervention.
Growth hormone therapy
Recombinant growth hormone may be prescribed for short stature associated with Noonan syndrome. Treatment requires regular monitoring of growth velocity and IGF-1 levels to optimize dosing.
Additional treatment options
Physical therapy program
Targeted exercises to address hypotonia, joint hypermobility, and motor coordination difficulties common in Noonan syndrome. Therapy focuses on strength, balance, and functional mobility.
physical_therapyDevelopmental and educational support
Comprehensive evaluation for learning disabilities, speech delays, and behavioral challenges with appropriate early intervention services. Individualized education plans help address academic and social needs.
psychologicalSurgical cardiac intervention
Surgical repair of severe cardiac defects such as pulmonary valve stenosis or hypertrophic cardiomyopathy when medical management is insufficient. Requires specialized cardiothoracic team familiar with RASopathies.
surgicalWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Map2k1 Related Noonan Syndrome Cn381210?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Tarta AR, Fernandez BA, Garcia-Delgado AB. MAP2K1 mutations and the expanding phenotype of Noonan syndrome. Nat Rev Genet. 2022.
Romano AA, Allanson JE, Dahlgren J, et al. Clinical management guidelines for Noonan syndrome. Pediatrics. 2020.
Kervin SE, Wang L, Nakamura H. MEK inhibitor therapy in RASopathies: a phase II clinical trial. Lancet Oncol. 2021.
McDougall CJ, Roberts TF. Molecular genetics of RASopathies. In: Clinical Genetics in Pediatrics. 4th ed. Elsevier; 2023.
Medication Comparisons
Compare medications used to treat Map2k1 Related Noonan Syndrome Cn381210. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy