hypertrophic polyposis of the stomach

abdomen anatomy belly body cancer carcinoma care chronic cross cut digestion digestive disease duodenum endoscope endoscopy erosion esophageal esophagus gastrectomy gastric gastrointestinal health helicobacter human hypertrophic illustration inflammation invasive malignant medical medicine mucosa oncology organ pain pathology peptic polyposis procedure removal resection science section stages stomach surgery surgical system tissue ulcer