You searched for: “megaesophagus
megaesophagus
Failure of the esophagogastric sphincter to relax with swallowing, as a result of the degeneration of the ganglion cells in the wall of the organ.

The thoracic esophagus also loses its normal peristaltic activity and becomes dilated. Also called, cardiospasm.

Specifically, failure of the esophagogastric sphincter to relax when swallowing, because of the degeneration of ganglion cells in the wall of the organ.