Signs and Symptoms
It produces rapidly progressive weakness of tongue, face and pharyngeal muscles in a clinical pattern similar to myasthenia bulbar palsy. Neuromuscular transmission may be abnormal in these muscles because of rapid denervation and immature reinervation, and strength may improve with administration of cholinesterase inhibitors. Paralysis occurs secondary to degeneration of the motor neurons of the brain stem. It causes progressive bulbar paralysis due to involvement of motor neurons of the cranial nerve nuclei. The most frequent symptoms at onset of progressive bulbar paralysis of childhood has been a unilateral facial paralysis. It is followed in frequency by dysarthria due to facial weakness or by dysphagia. Palatal weakness and palpebral ptosis also have been reported in few patients. Both sexes can be affected.
It has been proposed that Fazio-Londe disease and Brown-Vialetto-Van-Laere syndrome are a phenotypically associated condition.
Read more about this topic: Fazio-Londe Disease
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