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 colon diagnosis dialtation disease distal doctor duodenum esophagus evidence film fundus gastrointestinal hospital human illness intestine investigation junctionmoderate macro mass medical medicine men organ pain patient pattern physician proximal radiology sick sickness special stomach surgery swallow swallowing tract tumor ugi ulcer uppergastrointestinal view white