[Function and diseases of the lower esophageal sphincter (LES)].
1978
E Okamoto, and
I Sugawara, and
A Shu
UI
MeSH Term
Description
Entries
D004931
Esophageal Achalasia
A motility disorder of the ESOPHAGUS in which the LOWER ESOPHAGEAL SPHINCTER (near the CARDIA) fails to relax resulting in functional obstruction of the esophagus, and DYSPHAGIA. Achalasia is characterized by a grossly contorted and dilated esophagus (megaesophagus).