esophageal cancer stages

cancer esophagus esophageal stomach endoscopy carcinoma surgery treatment vector body oesophagus regurgitation digestive gastrointestinal gastric dysphagia oesophageal stage anatomical tumor achalasia manometry diagram obstruction exam medical inflammation reflux digestion anatomy gerd gastroscopy pain system health disease human cell medicine gastroesophageal organ esophago gastrectomy oncology duodenum illustration infographic lymph node