Lung metastases - conclusion

LUNG METASTASES - CONCLUSION
When secondary cancer in the lung is in the form of solid deposits, an X-ray usually shows them as round white shadows against the black air of the lung. If it is especially important to know whether or not there are lung secondaries, a CT scan may be recommended to look for spots that are too small to show on a plain chest X-ray. Often the appearance is so typical that there is no need to go any further to prove what they are. However, if they don't have the typical appearance or they are unexpected for your type of cancer, your doctor may recommend that you have an aspiration biopsy. A fine needle can be inserted into one of the lesions through the skin, under X-ray control. The diagnosis can then be definitely proved if cancer cells are found in the specimen.
If you have a lung biopsy, there is a small risk that air will keep leaking out of the lung afterwards. Some air always leaks into the pleural cavity, but usually the hole seals over quickly. There is also a small risk of internal bleeding. Your breathing, pulse rate and blood pressure should be checked regularly after a lung biopsy. An X-ray may also be recommended the following day to check that the leak has sealed. Small amounts of air that get into the pleural cavity are not a problem. The air gradually gets absorbed back into the system. However, if a lot of air leaks out of the lung, the lung collapses and doesn't function properly. If this happens, a plastic tube may have to be put through the chest wall into the pleural cavity to drain the air out until the leak seals over. This may take some days. The risk of this should be discussed with you before you have a lung biopsy. It is more of a risk if you have emphysema. Ask the doctor about the risks if he or she doesn't tell you.
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