Living with Charcot-Marie-Tooth disease type 2A2
An inherited nerve condition starting in childhood with weakness, lost reflexes, foot differences, and sometimes other nerve problems.
Understanding Charcot-Marie-Tooth disease type 2A2
It causes weakness and lost reflexes that start earlier and more severely in the legs, less sense of pain and temperature, foot differences, shaking when holding a posture, scoliosis, and tight joints. Some people have optic nerve damage, vocal cord weakness, hearing loss, spinal cord differences, or fluid buildup in the brain (hydrocephalus).
Signs & symptoms
Symptoms vary from person to person. GARD lists these among the most common:
- Absent ankle reflexes
- Less feeling in the hands and feet
- Foot differences
- Hand differences
- Trouble running and climbing stairs
- Very flexible ankles
Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.
Diagnosis
- 1Talk with your doctor
Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.
- 2See a specialist
Specialists who may be involved include brain and nervous system specialists and genetic specialists.
- 3Consider genetic testing
Changes in MFN2 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.
- 4Connect with expert centers
Hereditary Neuropathy Foundation Inc., Charcot-Marie-Tooth Association and Muscular Dystrophy Association may keep lists of experts for this condition.
Care & treatment
- Care team
- Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
- Expert care
- Expert lists: Hereditary Neuropathy Foundation Inc., Charcot-Marie-Tooth Association, Muscular Dystrophy Association
- 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 Hereditary Neuropathy Foundation Inc. 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
Quick facts
Changes in the MFN2 gene cause this condition. It is inherited in an autosomal dominant way, so one changed copy of the gene can cause it.
Also known as: autosomal dominant axonal charcot-marie-tooth disease type 2a2; autosomal dominant charcot-marie-tooth disease type 2a2; charcot-marie-tooth disease type 2 caused by mutation in mfn2; charcot-marie-tooth disease type 2a2a; charcot-marie-tooth disease, axonal, autosomal dominant, type 2a2a; charcot-marie-tooth disease, axonal, type 2a2
Patient organizations
- Hereditary Neuropathy Foundation Inc.Charcot-Marie-Tooth disease type 2A2 · United States
- Charcot-Marie-Tooth AssociationCharcot-Marie-Tooth disease type 2A2 · United States
- Muscular Dystrophy AssociationCharcot-Marie-Tooth disease type 2A2 · United States
- CMT Research FoundationCharcot-Marie-Tooth disease type 2A2 · United States
- The Foundation for Peripheral NeuropathyPeripheral neuropathy · United States
- Neuropathy Action FoundationPeripheral neuropathy · United States
You are more than your diagnosis
Perspectives from people navigating life with Charcot-Marie-Tooth disease type 2A2.
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