title: Endoscopic ultrasonography in achalasia.
abstract: Six patients with known achalasia were examined by endoscopic ultrasonography before dilatation therapy. At the level of the lower esophageal sphincter, a typical enlargement of the echolayer corresponding to the muscularis propria was observed in 5 cases. Endoscopic ultrasonography is a complementary procedure to manometry and x-ray for diagnosing achalasia. It helps differentiate achalasia from pseudoachalasia. In pseudoachalasia there is tumor infiltration.
authors.affiliation: Department of Gastroenterology, ULB Hospital Erasme, Brussels, Belgium.
authors.forename: J
authors.initials: J
authors.lastname: Devière
authors.forename: F
authors.initials: F
authors.lastname: Dunham
authors.forename: F
authors.initials: F
authors.lastname: Rickaert
authors.forename: N
authors.initials: N
authors.lastname: Bourgeois
authors.forename: M
authors.initials: M
authors.lastname: Cremer
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004931:Esophageal Achalasia / Q000175:diagnosis*; D004938:Esophageal Neoplasms / Q000175:diagnosis; D004945:Esophagoscopy; D006801:Humans; D008875:Middle Aged; D014463:Ultrasonography