Will tumor puncture needles stimulate tumor metastasis?

The reason why many patients and their families are afraid of puncture is that they are intuitively afraid. Although the puncture is a needle, the length of the needle is usually more than 10CM, and the penetration is very deep, which will make many patients feel afraid. Secondly, the patients who need puncture have basically been determined to be tumors, mainly to further detect the shape of the cancer cells. For the patient, the result of the diagnosis and treatment is like being sentenced to death. At this time, we can treat it as we should. Why do we need to puncture again?

In addition, some people think that the puncture will puncture the tumor and cause cancer cells to metastasize, which is actually nonsense. There are three reasons

① Generally, the needle used for tumor puncture is small (usually 0.4-0.7 mm), and the trauma to normal tissues and tumors is also very small.

②The examination time of puncture is very short, and once the diagnosis result appears, the doctor will take corresponding treatment measures immediately. Cancer cells don't have time to metastasize.

③ The puncture site is generally far away from larger blood vessels, and generally does not cause cancer cells to enter the blood.

According to the "Chinese Expert Consensus on Puncture Biopsy of Thoracic Tumors" released in 2018, puncture can reduce the probability of misdiagnosis and missed diagnosis, and plays an important role in subsequent treatment. For example, lung cancer, because the imaging test results are only shadows and small nodules, if you want to make a further accurate diagnosis, you must get a sample of live tumor cells.

Therefore, puncture is very important in the diagnosis and treatment of tumors. Don't listen to rumors and resist needle biopsy.

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