what is an esophageal spasm
An esophageal spasm is a rare disorder characterized by abnormal muscle contractions in the esophagus, the narrow muscular organ that connects the mouth to the stomach and through which foods and liquids pass after being swallowed.here are two main types of spasms: 1  Diffuse (or distal) esophageal spasmsâThese are uncoordinated muscle contractions that occur throughout the lower two-thirds of the esophagus. 2  Nutcracker esophagus is a condition in which the muscle contractions are coordinated but are too strong, causing severe pain.