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Living with Desmin-related myofibrillar myopathy

A rare genetic muscle disease that causes weakness that spreads from the legs and often affects the heart.

Understanding Desmin-related myofibrillar myopathy

Desmin-related myofibrillar myopathy is a rare genetic muscle disease in which desmin and other proteins clump together inside muscle cells.

Weakness usually starts in the lower legs and spreads upward. It can involve the trunk, neck, and face. Many people also have heart muscle disease with rhythm and conduction problems. Over time weakness can lead to wheelchair use, and breathing muscles can become weak. Onset and speed of change vary.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Weakness in the lower leg muscles
  • Weakness in trunk muscles
  • Abnormal walk
  • Thickened heart muscle (cardiomyopathy)
  • Heart block (rhythm problems)
  • Weak breathing muscles

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists, genetic specialists and heart and blood vessel specialists.

  3. Consider genetic testing

    Changes in DES are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Muscular Dystrophy Association and Children's Cardiomyopathy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists); Heart and blood vessel specialists (cardiologists)
Expert care
Expert lists: Muscular Dystrophy Association, Children's Cardiomyopathy Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Muscular Dystrophy Association and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can genetic testing of the DES gene confirm the diagnosis?
How often should heart rhythm and heart function be checked?
How should breathing be monitored, such as during sleep?

Quick facts

Symptoms usually starta variety of ages
InheritanceAutosomal Dominant, Autosomal Recessive
GenesDES

Changes in the DES gene cause this condition. GARD lists both autosomal dominant and autosomal recessive inheritance.

GeneticNeurological

Also known as: autosomal recessive limb-girdle muscular dystrophy caused by mutation in des; autosomal recessive limb-girdle muscular dystrophy type 2r; des autosomal recessive limb-girdle muscular dystrophy; des myofibrillar myopathy (disease); desmin related myopathy (former name); desmin storage myopathy (former name)

Patient organizations

Source: NIH GARD · Desmin-related myofibrillar myopathyGARD ID 16870 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Desmin-related myofibrillar myopathy.

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