Rare diseases · Sign or symptom
EMG: neuropathic changes
HP:0003445
What it means
The presence of characteristic findings of denervation on electromyography (fibrillations, positive sharp waves, and giant motor unit potentials).
This is a bundled term. It is preferable to annotate the precise clinical observations, but the term is kept now for convenience.
Rare diseases that can present with this17
Very common80–99%
2Common30–79%
11- Acute inflammatory demyelinating polyradiculoneuropathy
- Anoctamin-5-related limb-girdle muscular dystrophy R12
- Autosomal dominant adult-onset proximal spinal muscular atrophy
- Autosomal recessive spastic paraplegia type 11
- Autosomal recessive spastic paraplegia type 74
- Choreoacanthocytosis
- Idiopathic camptocormia
- Lower motor neuron syndrome with late-adult onset
- Myoclonus-cerebellar ataxia-deafness syndrome
- Spinocerebellar ataxia type 25
- X-linked progressive cerebellar ataxia
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: EMG: neurogenic abnormalities · EMG: neurogenic changes · EMG: neurogenic findings
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.