High-amplitude peristaltic contractions in a patient with esophageal intramural pseudodiverticulosis.

In their initial radiographic description of esophageal intramural pseudodiverticulosis (EIP) in 1960, Mendl and coworkers suggested that elevated esophageal intraluminal pressure might be etiologically important. Chronic inflammation and moniliasis have also been implicated. A patient is reported with EIP and a primary esophageal motility disorder characterized by esophageal contractions of increased amplitude and duration. Features confusing the interpretation of esophageal motor abnormalities in previously reported cases, such as diabetes mellitus, fungal esophagitis, and stricture formation, were not present in this case.