How to do lung biopsy

For puncture under CT positioning, the main steps are as follows. First, a chest CT scan was performed to measure the size, density, and the shortest straight-line distance to the skin, mark the number of beds, and mark the puncture point on the skin. Then, the skin of the puncture site is disinfected, a small hole towel is laid, and after the puncture point is anesthetized, a 18G disposable biopsy needle or a semi-automatic biopsy gun is used to puncture the mass in the lung through the skin, subcutaneous tissue, intercostal muscle and pleura, during which multiple scans are required. Adjust the direction and depth of the puncture needle until the tip of the puncture needle enters the edge of the mass, instruct the patient to hold his breath, stimulate the puncture needle, quickly withdraw the puncture needle, and send the tissue to the pathological examination.

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