Esophageal spasm
（重定向自Oesophageal spasm）
Esophageal spasm or oesophageal spasm is a disorder of esophageal motility. The esophagus is an organ in vertebrates which consists of a fibromuscular tube through which food passes, aided by peristalsis contractions, from the upper esophageal sphincter to the stomach through waves of co-ordinated muscle contraction, or peristalsis.