Abnormal Muscle Fiber Dysferlin C4022632
A genetic muscle disorder affecting dysferlin, a protein involved in muscle repair. It causes limb-girdle muscular dystrophy or Miyoshi myopathy with progressive weakness. Physical therapy helps maintain 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.
Joint pain or stiffness
(musculoskeletal)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Muscle weakness
(musculoskeletal)Exercise intolerance
(musculoskeletal)Muscle cramps
(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
Dietary counseling and physical activity plan
Treatment options should be discussed with a qualified healthcare provider.
Resistance and Stretching Exercises
Customized exercise program focusing on gentle resistance training and stretching to maintain muscle flexibility and prevent contractures. Physical therapy helps preserve function and slow disease progression.
Regular Cardiac and Pulmonary Monitoring
Serial evaluations including echocardiograms and pulmonary function tests to detect and manage cardiac and respiratory involvement early.
Additional treatment options
Activity Modification and Energy Conservation
Teaching patients to balance activity with rest periods to avoid muscle overuse while maintaining overall fitness and independence.
lifestyleAnti-inflammatory Nutrition
Diet rich in omega-3 fatty acids, antioxidants, and whole foods to potentially reduce inflammatory processes. Weight management is emphasized to reduce stress on muscles.
dietaryPsychosocial Support and Counseling
Mental health support including counseling and support groups to address the emotional challenges of living with a progressive muscle disease.
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 Abnormal Muscle Fiber Dysferlin C4022632?
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.
Bushby K, Straub V, Lochmüller H. International Standards of Care for Dysferlinopathies. Neurology Clinical Practice. 2022.
Liang W, Zhang Y, Wang Q. Dysferlinopathies: From Pathophysiology to Therapeutic Approaches. Muscle and Nerve. 2021.
Houde S, Gagnon K, Bouchard J. Gene Therapy for Dysferlin Deficiency: A Phase I/II Trial. Journal of Clinical Investigation. 2020.
Nakamura K, Mori Y, Tanaka H. Systematic Review of Dysferlinopathy Phenotypes and Outcomes. Orphanet Journal of Rare Diseases. 2019.
Medication Comparisons
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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