what types of cancer can spread to the lungs
Sometimes breast cancer cells spread to one or both lungs through the blood or lymph system. Itâs not uncommon for the lymph nodes of the chest (mediastinum) to be affected. The cells that have spread to the lungs are breast cancer cells. It is not the same as having cancer that starts in the lungs (a lung cancer). When breast cancer spreads to the lungs it can be treated but it can't be cured. The lungs sit on either side of the chest and are protected by the rib cage.
The secondary cancer is made of the same type of cells as the primary cancer. If your cancer started in your bowel and has spread to your lung, the areas of cancer in the lung are made up of bowel cancer cells. This is different from having a cancer that first started in the lung (a primary lung cancer). In that case, the cancer is made up of lung cells that have become cancerous.