Sporadic Motor Neuron Diseases
| Chronic | Entity |
|---|---|
| Upper and lower motor neuron | Amyotrophic lateral sclerosis |
| Predominantly upper motor neuron | Primary lateral sclerosis |
| Predominantly lower motor neuron | Multifocal motor neuropathy with conduction block |
| Motor neuropathy with paraproteinemia or cancer | |
| Motor predominant peripheral neuropathies | |
| Other | |
| Associated with other neurodegenerative disorders | |
| Secondary motor neuron disorders (see Table 185-2) | |
| Acute | |
| Poliomyelitis | |
| Herpes zoster | |
| Coxsackie virus | |
| West Nile virus |