A lung puncture involves using a puncture to remove a piece of tissue from the lung. This is done with the help of a CT scan. This allows the doctor to clearly see where the puncture should be done. The piece of tissue will be examined in the laboratory. This Divi explains how the examination is done. In addition, preparation and aftercare will be discussed. Finally, the Divi explains how the tissue is examined after it has been taken by lung puncture.