Early gastric cancer with no symptoms or only mild symptoms. When the clinical symptoms were obvious, the lesions were advanced. Therefore,
Early gastric cancer with no symptoms or only mild symptoms. When the clinical symptoms were obvious, the lesions were advanced. Therefore, we should be very alert to the early symptoms of gastric cancer, so as not to delay the diagnosis and treatment.
The so-called precancerous change refers to some strong malignant lesions, the lesions such as not to be possible for the development of gastric cancer treatment. Pre cancerous changes include precancerous condition (precancerous conditions) and precancerous lesions (precancerous lesions).
Precancerous condition of the stomach
1 chronic atrophic gastritis: chronic atrophic gastritis and gastric cancer incidence was significantly positive correlation.
2 pernicious anemia: malignant anemia in patients with gastric cancer incidence of 10%, the incidence of gastric cancer is normal to the crowd of 5 to 10 times.
3 gastric polyps: adenomatous or villous polyps, although the proportion of polyps in the stomach is not high, the canceration rate was 15% ~ 40%. Diameter greater than 2cm canceration rate is higher. Hyperplastic polyps were common, while the canceration rate was only 1%.
4: the gastric remnant gastric remnant gastric benign lesion after operation of gastric remnant cancer said. The incidence of gastric surgery increased significantly, especially in the 10 year after operation.
5 benign gastric ulcer: gastric ulcer itself is not a precancerous condition. The ulcer margin mucosal is prone to intestinal metaplasia and canceration.
6 giant gastric mucosal folds disease (Menetrier disease): serum protein by giant gastric mucosal folds leakage, clinically, hypoproteinemia and edema, approximately 10% of cancer.
Two. Precancerous lesions of the stomach
1 abnormal hyperplasia and change: the former is also known as atypical hyperplasia, is caused by chronic inflammation of the reversible pathological cell proliferation, a few cases can not be cancerous. Gastric anaplastic (anaplasia) is more likely to be cancerous.
2 intestinal metaplasia: there are two types of small intestine and large intestine, small intestine (complete type) with the characteristics of small intestinal mucosa, differentiation is better. E. type (incomplete) similar to colorectal mucosa, and can be divided into 2 subtypes: type IIA, can secrete non sulfated mucins; II B can secrete sulphated mucin, this type of gastric cancer and closely related.
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