Tag: lower esophageal sphincter

Achalasia Definition and Description of Achalasia Achalasia is a rare esophageal disorder characterized by the inability of the lower esophageal sphincter (LES) to relax properly. This malfunction prevents food and liquid from passing into the stomach, leading to various complications. The term “achalasia” is derived from the Greek words “a-” meaning “without,” “chalasis,” meaning “relaxation.”…