stomach organ with polyp, gastroscopy and removal polyp. check health of stomach. unhealthy gastric, indigestion

polyp removal stomach gastroscopy gastric healthy gastritis problem organ vector stomachache constipation gastrointestinal indigestion flat human medical gastroenterology disease health digestive treatment medicine illustration checkup patient help digestion internal unhealthy polypectomy body surgery diagnosis oncology biopsy polyps detection prevention graphic therapy cell growth endoscopic cure pathology person equipment hospital