barium swallow evidence of achalasia at distal esophagus to eg junction.moderate proximal dialtation of esophagus with

abdomen abdominal achalasia adult anatomy background barium black bowel closeup diagnosis dialtation disease distal doctor duodenal duodenum enema esophagus evidence film fundus gastrointestinal hospital human intestine investigation junctionmoderate mass medical medicine organ pain patient pattern pharynx physician proximal radiology sick sickness stomach stomachulcer surgery swallow swallowing thorax tract tumor ugi ulcer uppergastrointestinal view white