Is it true or false that the needle biopsy needle pulls out the radish and brings out the mud?

First, although a small number of malignant cells may be found in the needle tract during a biopsy, this does not necessarily mean metastasis, because the body's immune system will quickly kill them.

Second, the instruments for needle biopsy are also improving. The current sampling device has a cannula structure. At the same time, after the needle is placed, when it is close to the tumor body, the inner tube enters the tumor body to take materials, and then returns to the outer tube after the sampling. Leakage, the human body has been protected to the greatest extent.

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