Charcot-Marie-Tooth Disease synonyms

Charcot-Marie-Tooth disease, often abbreviated as CMT, is a group of inherited peripheral nerve disorders formally classified as Hereditary Motor and Sensory Neuropathy (HMSN). While patients may use various descriptive terms like "peroneal muscular atrophy," the medical community now relies on specific genetic subtypes to categorize this diverse condition.

What are the historical and alternative names for Charcot-Marie-Tooth disease?

Charcot-Marie-Tooth disease is named after the three physicians who first described it in 1886: Jean-Martin Charcot, Pierre Marie, and Howard Henry Tooth. Because it was historically categorized by its clinical presentation rather than its genetic cause, it has been referred to by several names in older literature. You may see it labeled as Peroneal Muscular Atrophy (PMA), reflecting the muscle wasting often seen in the lower legs, or Hereditary Motor and Sensory Neuropathy (HMSN), which is the more formal, clinically descriptive term still used in many diagnostic contexts today.

Why does Charcot-Marie-Tooth disease have so many different names?

The naming complexity of Charcot-Marie-Tooth disease stems from the evolution of medical diagnostics. Before genetic testing was available, doctors grouped patients based on physical symptoms like foot drop, high arches (pes cavus), and muscle atrophy. As researchers identified the specific genetic mutations causing the condition, the terminology shifted toward a classification system based on the underlying genetic defect (e.g., CMT1A, CMT1B, CMT2A). This transition is why you may find older clinical records using the term HMSN, while modern specialists prefer the specific CMT type associated with your unique genetic profile.

How is Charcot-Marie-Tooth disease classified internationally?

In global medical coding, Charcot-Marie-Tooth disease is tracked through several authoritative frameworks. Using these official identifiers can help ensure your medical records remain consistent across different specialists:

• ICD-10/11: Classified under diseases of the nervous system, specifically as Hereditary and Idiopathic Neuropathy.


• OMIM (Online Mendelian Inheritance in Man): Provides specific entry numbers for each genetic variant (e.g., #118200 for CMT1A).


• Orphanet: Lists the condition under ORPHA:166, categorized as a rare genetic peripheral neuropathy.

What terminology should patients use when speaking with specialists?

When consulting with a neurologist or a clinical geneticist, it is most helpful to refer to the condition as Charcot-Marie-Tooth disease followed by its specific genetic subtype, if known (e.g., "CMT Type 1A"). While terms like "nerve pain" or "foot drop" accurately describe the symptoms, using the formal diagnosis of Charcot-Marie-Tooth disease helps clinicians access the specific, evidence-based management protocols relevant to your genetic variant. With 1,193 members in the DiseaseMaps.org community sharing their experiences, we see how vital it is for patients to advocate for their specific diagnosis to receive appropriate orthopaedic and neurological care.

Next steps

• Consult a neurologist specializing in neuromuscular disorders for genetic testing and confirmation of your specific CMT subtype.


• Keep a record of your official diagnosis, including the specific genetic mutation identified, to share with podiatrists and physical therapists.


• Connect with the 1,193 members of the DiseaseMaps.org community to share experiences on managing daily symptoms like chronic fatigue and pain.


• Review your family history and consider genetic counseling to understand the inheritance pattern relevant to your family.

Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.

References

• Orphanet: Rare Disease Database (ORPHA:166)


• NIH Genetic and Rare Diseases (GARD) Information Center


• OMIM (Online Mendelian Inheritance in Man) database


• Charcot-Marie-Tooth Association (CMTA) Patient Resources