胃生検の手順

胃生検は一般的に2つのステップで構成されます。

Step 1: The gastroscopist inserts the gastroscope into the stomach from the patient's mouth through the pharynx and esophagus, observes the lesion through the gastroscope and decides to do a biopsy, and uses a special biopsy forceps to pick up a small piece of tissue (commonly known as meat) from the lesion. )come out. The best gastroscope at present is the electronic gastroscope. In the central and southern regions, Xiehe Hospital used it the earliest and had the most patients. Compared with the old-fashioned rubber gastroscope, the electronic gastroscope has a smaller tube diameter, is soft and bendable, and is easy to operate. Moreover, through the transmission of optical fibers, it can clearly transmit the situation in the stomach to the TV screen, which is convenient for multiple people to observe and diagnose at the same time, thus breaking through the limitation that the old-fashioned gastroscope can only be viewed by one gastroscopist. When the gastroscopist encounters suspicious lesions, while observing the screen, he clamps the diseased tissue about the size of a grain of rice and sends it for biopsy. When the tissue block was clamped, the patient was stinged like an ant with only mild discomfort. There will be a very small wound after clamping, and there will be a small amount of gastric bleeding, but as long as you fast for a short period of time and take a few pills after the operation, you will be fine.

The second step: the tissue is sent to the pathology department, and after a series of treatments in the pathology department, it is cut into 3 to 5 micron thick slices and spread on the glass slide, and then after various staining, the observable slices are made , diagnosed by a pathologist under a microscope. To judge whether the lesion is inflammation or tumor? If it is tumor, is it benign or malignant? Which tissue source does the tumor cells originate from? As we all know, pathological examination has the highest accuracy among all examination methods, and is known as the "gold standard" for diagnosis Therefore, gastric biopsy, as a diagnostic method relying on pathological examination, has high accuracy and authority for the diagnosis of gastric diseases. Correspondingly, it is most reliable for clinicians to formulate treatment plans based on the pathological results of gastric biopsy.

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