The clinical neurological examination was normal; a right lateral tongue bite could be identified only with uncertainty. Emergency magnetic resonance imaging (MRI) of the skull did not reveal an ...

Primary lateral sclerosis (PLS) is a motor neuron disease that occurs when the nerve cells in muscles slowly deteriorate.

c: Lateral view of the pharynx, which has now been coated by high-density barium. Structures can be seen including the soft palate (u), the dorsum of the tongue (T), the valleculae (V), the ...