Medi-differentiated adenocarcinoma of the stomach is a pathological type and is not relied upon to determine the stage, which can occur from early to late stages.
Medi-differentiated adenocarcinoma of the stomach is a relatively less malignant type of pathology in terms of malignancy, but in terms of staging, gastroscopic biopsy only determines the pathological type of gastric cancer and does not fully determine what stage it is, but still depends on the specific manifestations of gastric cancer and some relevant test results.
From a medical point of view, the staging of gastric cancer should be divided into early and progressive stages. Generally, early gastric cancer is divided into three main categories: polyp type, flat type, and sunken type, each of which can be specifically divided into many subcategories, but collectively called early gastric cancer because the lesion only invades the mucosal layer. If it breaks through the mucosal layer, it is called progressive gastric cancer. Progressive gastric cancer often shows some ulcer-like manifestations, which is called ulcerative, and it can also be often shown as mass, all of which can be examined by gastroscopy, so gastroscopy is crucial to the diagnosis of gastric cancer. When the cancer is suspected or clearly identified by gastroscopy, we still need to look at the lymph nodes and distant metastasis of the adjacent tissues for specific staging, which is judged by enhanced CT or PET-CT. The stage of gastric cancer is determined by the size of the tumor, the number of lymph node metastases, or the presence of lymph node metastases, and the presence of distant metastases.
Internationally, TNM is used for staging, and if surgery is performed on gastric cancer, the final diagnosis is postoperative staging.