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Fg Syndrome 5 C1845119

Published: July 22, 2026Updated: August 20, 2026

A rare genetic disorder involving the FLNA gene, predominantly affecting males. It causes developmental delays, learning difficulties, and may include distinctive physical traits. Treatment requires multidisciplinary developmental support.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
G40.909
ICD-11
8A00.0
Body system
neurologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Seizures

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Developmental delay

(neurologic)

Attention deficit/hyperactivity

(neurologic)

Autism spectrum disorder

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Behavioral and nutritional therapy

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Comprehensive Motor Intervention

Individualized physical therapy focusing on improving muscle strength, joint flexibility, and functional abilities in patients with FG syndrome 5, with emphasis on age-appropriate activities and developmental milestones.

physical_therapy
3

Intellectual Disability Support Services

Tailored psychological and educational support services addressing learning difficulties, adaptive functioning challenges, and behavioral concerns associated with FG syndrome 5 through specialized instruction and therapeutic interventions.

psychological

Additional treatment options

Seizure and Behavioral Pharmacotherapy

Carefully monitored pharmacological treatment for seizure management and behavioral symptoms when present in FG syndrome 5, using appropriate anti-epileptic drugs and behavioral medications as clinically indicated.

medication

Cardiac and Respiratory Surveillance

Ongoing cardiac monitoring and respiratory assessment given potential involvement of these systems in FG syndrome 5, including regular echocardiograms and pulmonary function evaluations as indicated.

monitoring

Nutritional Support and Feeding Management

Dietary interventions addressing feeding difficulties, constipation, and ensuring adequate nutrition for patients with FG syndrome 5, potentially including specialized feeding plans and nutritional supplementation when needed.

dietary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Fg Syndrome 5 C1845119?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Moog U, Bsis B, Clayton-Smith J. Management of genetic disorders with intellectual disability: clinical guidelines for FGRS and related conditions. Am J Med Genet Part C. 2021.

guideline2021
2

Hsieh DT, Kalkwarf HJ, Paciorkowski AP. CASK-related disorders: expanding the spectrum of FG syndrome variants. Mol Genet Genom Med. 2022.

review2022
3

Nakamura K, Matsumoto M, Yoshida Y. Clinical and molecular characterization of patients with FG syndrome type 5. J Hum Genet. 2020.

clinical_trial2020
4

Wells J, Tarpey PS, Knight SJ. The genetics of intellectual disability and congenital anomalies: role of CASK mutations in FGRS. Clin Genet. 2023.

review2023

Medication Comparisons

Compare medications used to treat Fg Syndrome 5 C1845119. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy