[Risk of stomach cancer in pretumorous states].

Analysis of the late results of the surgical treatment and longterm follow-up of non-operated patients with chronic benign diseases of the stomach evidences gastric cancer high-risk in patients with anacid gastritis, polyposis and ulcerous disease. The gastric cancer high-risk groups should also include the patients previously subjected to surgery for ulcerous affection of polyposis of the given organ. From the point of view of the organization of oncological service, patients with the mentioned pretumor diseases of the stomach do need postoperatively a life-long dispensary supervision and regular check examination.