Pseudobulbar palsy is a clinical syndrome of dysarthria, dysphagia, a hyperactive gag reflex and labile emotional responses. It results from bilateral upper motor neuron brainstem lesions.
This is in contrast to bulbar palsy, which is a lower motor neuron syndrome involving the lowermost cranial nerves. It also results in dysarthria and dysphagia, but with a decreased gag reflex and absence of emotional lability.
Conditions that may present with pseudobulbar palsy include:
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