progressive bulbar palsy
Definition: one of the subgroups of motor neuron disease; a progressive degenerative disorder of the motor neurons of primarily the brainstem, manifested as weakness (and wasting) of the various bulbar muscles, resulting in dysarthria and dysphagia—fluid regurgitation is an outstanding symptom and can cause aspiration; tongue weakness and wasting are usually evident. Often fasciculation potentials are present in the tongue and facial muscles.
Synonym(s): bulbar palsy, bulbar paralysis, Erb disease, glossolabiolaryngeal paralysis, glossolabiopharyngeal paralysis, glossopalatolabial paralysis, glossopharyngeolabial paralysis, progressive bulbar paralysis
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