Spread to the Lungs
The lungs are a common place for several cancers to spread. What happens next depends on where the cancer began, how much is in the lungs, whether cancer is anywhere else, your breathing and lung function, tumor biology and the treatments you have already had.
Cancer that spreads to the lungs is not automatically lung cancer.
If colorectal, breast, kidney, melanoma or another cancer spreads to the lungs, it is still the cancer where it began. That matters because systemic treatment is guided by the original cancer and its biology—and because selected lung tumors may also be considered for local treatment.
Three things can change the conversation.
How much is in the lungs?
One or a few lung spots can create a different conversation than widespread lung involvement. Size, number, location and change over time all matter.
Is cancer anywhere else?
Lung-only disease, a limited number of sites, or cancer that is widespread throughout the body may lead to different treatment goals and combinations.
What cancer are we treating?
The original cancer and its biomarkers still guide systemic treatment. A spot in the lung does not erase where the cancer began.
Some breathing symptoms should not wait.
New or rapidly worsening shortness of breath, severe chest pain, coughing up more than a small amount of blood, fainting, blue or gray lips, or significant difficulty breathing require prompt medical attention. Severe breathing difficulty is an emergency.
Treatment may have two jobs.
Treat the cancer throughout the body
Systemic treatment may include chemotherapy, targeted therapy, immunotherapy, endocrine therapy or other cancer-specific treatment depending on where the cancer began and its biomarkers.
Treat selected tumors in the lungs
For carefully selected patients, surgery, image-guided ablation or focused radiation may be considered to control or remove one or more lung tumors.
Four doors worth opening.
Your medical oncologist sees the whole cancer picture. When disease in the lungs is limited or causing a specific problem, additional specialists may see local options worth discussing.
Medical Oncology
Connects the original cancer, biomarkers, prior treatment and disease everywhere in the body into the systemic plan.
Thoracic Surgery
For some people with limited lung disease, pulmonary metastasectomy may be considered. A thoracic surgeon can assess location, ability to remove all visible disease and how much healthy lung can be preserved.
Interventional Oncology
For selected lung tumors, an interventional radiologist may consider minimally invasive thermal ablation, particularly when surgery is not the best fit.
Radiation Oncology
SBRT can deliver highly focused radiation to selected lung tumors and may be discussed as a local treatment option in an appropriate multidisciplinary setting.
Local treatment is not just one thing.
For selected patients—especially when cancer in the lungs is limited—local treatment may be worth discussing alongside systemic therapy. The best choice depends on the original cancer, number and location of tumors, disease elsewhere, lung function, prior treatment and overall goals.
Use the RoadMap as your guide.
For colorectal cancer in particular, NCI recognizes surgical removal of isolated lung metastases as an option for selected patients. The important question is not simply whether cancer has reached the lungs. It is whether your pattern of disease deserves review for surgery, ablation, focused radiation, systemic treatment—or a thoughtful combination.
You are allowed to ask “What else?”
Sometimes “it spread to the lungs” is the beginning of the questions—not the end of the options.
A medical oncologist, thoracic surgeon, radiation oncologist and interventional radiologist may look at the same scans through different lenses. The RoadMap helps make sure the right questions—and the right people—make it into the conversation.