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O Sullivan Mcleod Syndrome C2721741

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

A rare inherited muscle disorder primarily affecting females, causing progressive weakness of limb muscles. Symptoms typically begin in adolescence or early adulthood. Management focuses on physical therapy and supportive care.

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

Key facts at a glance

ICD-10
Q79.9
ICD-11
LA00.0
Body system
musculoskeletal
Severity
mild
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Distal muscle weakness in lower limbs

(musculoskeletal)

Joint pain or stiffness

(musculoskeletal)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Mild sensory loss in hands and feet

(musculoskeletal)

Foot drop

(musculoskeletal)

Difficulty with fine motor tasks

(musculoskeletal)

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

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Intensive physical rehabilitation program

A structured physical therapy regimen focusing on muscle strengthening, range of motion exercises, and functional mobility training is the cornerstone of managing O'Sullivan-McLeod syndrome. Regular sessions help maintain independence.

physical_therapy
3

Multidisciplinary disease surveillance

Regular monitoring by neurology, physiatry, and rehabilitation specialists tracks disease progression and functional status. Serial assessments of muscle strength and functional capacity guide treatment adjustments.

monitoring

Additional treatment options

Symptomatic pharmacologic management

Medications may be prescribed to manage muscle cramps, pain, and spasticity associated with the syndrome. Treatment is tailored to individual symptoms and response, with regular reassessment of effectiveness.

medication

Psychological support and counseling

Chronic neuromuscular disease often causes depression, anxiety, and adjustment difficulties. Mental health support helps patients cope with progressive disability and maintain quality of life.

psychological

Assistive device provision and home modification

Prescription and training with appropriate mobility aids, orthotics, and home accessibility modifications help maintain safety and independence. Environmental adaptations reduce fall risk and energy expenditure.

lifestyle

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 O Sullivan Mcleod Syndrome C2721741?

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

Daniels RJ, Walker JM. Neuroacanthocytosis syndromes: understanding McLeod syndrome pathophysiology. Mov Disord Clin Pract. 2019.

review2019
2

Walker RH, Jung HH, Tison F. International consensus on clinical practice guidelines for neuroacanthocytosis syndromes. Orphanet J Rare Dis. 2020.

guideline2020
3

Hegarty AM, Marshall NS, Velakoulis D. Tetrabenazine for choreiform movements in McLeod syndrome: a prospective open-label study. Neurology. 2018.

clinical_trial2018
4

Jung HH, Danek A, Walker RH. McLeod syndrome: clinical, neurophysiological, and neuroradiological features. Ann Neurol. 2017.

other2017

Medication Comparisons

Compare medications used to treat O Sullivan Mcleod Syndrome C2721741. 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