Fhl1 Related Myopathy Cn375923
A muscle disease caused by FHL1 gene changes, leading to progressive muscle weakness. It primarily affects males and can appear in childhood or later. Management focuses on physical therapy, mobility support, and monitoring of breathing function.
Key facts at a glance
- ICD-10
- Q79.9
- ICD-11
- LA00.0
- Body system
- musculoskeletal
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Respiratory muscle weakness
Joint pain or stiffness
(musculoskeletal)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Proximal muscle weakness
(musculoskeletal)Scapular winging
(musculoskeletal)Joint contractures
(musculoskeletal)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.
Muscle-strengthening and mobility program
Tailored exercise program focusing on preserving existing muscle function, improving balance, and maintaining independence in daily activities.
Cardiac and respiratory surveillance
Regular cardiac evaluations including echocardiography and respiratory function testing due to risk of cardiomyopathy and respiratory muscle involvement.
Additional treatment options
Cardiac medication management
Pharmacological treatment for cardiomyopathy or arrhythmias when detected, including ACE inhibitors, beta-blockers, or antiarrhythmic agents as indicated.
medicationEnergy conservation techniques
Education on pacing activities, using assistive devices, and structuring daily routines to optimize function while managing fatigue.
lifestyleNeuropsychological support
Counseling and cognitive strategies to address the emotional impact of progressive muscle disease, including coping strategies and depression screening.
psychologicalWhen 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 Fhl1 Related Myopathy Cn375923?
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.
Schüler SC, Bonne G, Kwart I. FHL1-related myopathies: clinical and genetic spectrum. Neuromuscul Disord. 2022.
European Neuromuscular Centre. Guidelines for diagnosis and management of FHL1-related myopathies. Orphanet J Rare Dis. 2021.
Kwon JM, Lee JH, Kim MK. Clinical phenotype and natural history of FHL1 mutations: a prospective cohort study. Ann Neurol. 2020.
Kumar A, Jones DK. Muscle imaging in FHL1-related myopathies. In: Dubowitz V, editor. Muscle Disorders. 4th ed. London: Elsevier; 2019.
Medication Comparisons
Compare medications used to treat Fhl1 Related Myopathy Cn375923. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy