The causes of early metastasis of gastric cancer mainly include the following aspects:
Lymphatic duct transmission: In the early stage of gastric cancer, it often invades the deep tissues of the stomach wall, which contain a large number of lymphatic ducts. Cancer cells can quickly spread through lymphatic ducts to nearby lymph nodes, causing regional lymph node metastasis.
Hematogenous metastasesWith the increase of gastric cancer lesions and the increase of malignancy, cancer cells can enter the vascular system and be remotely transferred to other organs, such as liver, lungs, bones, etc., through the blood, forming distant metastasis.
Early symptoms are not obvious: The early symptoms of gastric cancer are often atypical, such as indigestion, acid reflux, mild abdominal pain, etc., which are easy to be ignored. As a result, many patients find symptoms when the cancer has advanced and the chance of metastasis increases.
There is a lack of effective early screening methods: At present, there is no widely effective early screening method for gastric cancer, resulting in many patients being not easy to detect at an early stage.
Pathological features: The pathological characteristics of gastric cancer include high heterogeneity, easy invasion of surrounding tissues, and metastasis, which also increase the likelihood of early metastasis.
In summary, there are many reasons for the early metastasis of gastric cancer, including pathological characteristics, early symptoms are not obvious, metastasis routes and other factors. Therefore, for high-risk groups, it is recommended to have regular physical examinations, pay attention to early symptoms, and seek medical attention in time for examinations and **, which helps to improve the chances of early diagnosis and **.
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