Myopathy Centronuclear 6 With Fiber Type Disproportion C4540345
A congenital myopathy featuring muscle weakness and specific fiber size differences under the microscope. Symptoms typically appear at birth or early childhood. Management involves multidisciplinary supportive care.
Key facts at a glance
- ICD-10
- Q79.9
- ICD-11
- LA00.0
- Body system
- musculoskeletal
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Severe generalized muscle weakness
Respiratory failure
Joint pain or stiffness
(musculoskeletal)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Delayed motor milestones
(musculoskeletal)Muscle pain
(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
Adaptive Exercise Program
Customized exercise program emphasizing gentle strengthening, flexibility exercises, and low-impact aerobic activity tailored to accommodate muscle weakness and prevent deconditioning.
Drug therapy with clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Developmental and Growth Monitoring
Regular assessment of growth parameters, motor development, and functional abilities in children. In adults, monitor for progressive weakness and functional decline.
Additional treatment options
Nutrition Optimization
Nutritional counseling to ensure adequate protein intake, appropriate calorie levels, and essential nutrients supporting muscle health. Weight management is important to avoid excess stress on weakened muscles.
lifestyleFamily-Centered Psychological Support
Psychological support services addressing the impact of a chronic neuromuscular condition on the individual and family unit. May include counseling, support groups, and coping strategy development.
psychologicalRespiratory Support Planning
Evaluation for non-invasive ventilatory support options as respiratory muscle weakness progresses. May include BiPAP or other breathing assistance devices for nocturnal support.
procedureWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Myopathy Centronuclear 6 With Fiber Type Disproportion C4540345?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
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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 27, 2026. · Read our editorial policy