[Shy-Drager syndrome and megaesophagus (author's transl)]

Authors report the case of a Shy-Drager syndrome (idiopathic postural hypotension due to a central degenerative lesion) syndrome which evolution uncovered a megaesophagus. The knowledge of degenerative lesions of the vagus nerve in megaesophagus, the effectiveness of motory lesions of the esophagus in Parkinson's disease where lesions of the vagoglosso pharyngeal dorsal nucleus frequently occurs, allow to discuss the central nervous origin of the megaesophagus appeared in the reported case.