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Glossary


Lung metastases

Metastatic cancer occurs when cancer spreads from its original location (primary tumour) to a new part of the body. Lung (pulmonary) metastases occur when a cancer spreads to the lung from its primary site. Lung metastases are different from a cancer that starts in the lung (called primary lung cancer). The lungs are among the most common places where cancer can spread.

Cancers that spread to the lung

Lung metastases only develop if a person already has cancer. Almost any type of cancer can spread to the lung. Cancers that typically spread to the lung include:

  • lung – metastases occur in the other (contralateral) lung
  • breast
  • skin (melanoma)
  • pancreas
  • kidney
  • colorectal
  • head and neck – such as oral, pharyngeal and laryngeal cancer
  • thyroid
  • testicular
  • bladder
  • esophageal
  • stomach
  • liver
  • bone
  • soft tissue sarcoma
  • ovarian
  • cervical
  • prostate
  • lymphoma

 

Occasionally, cancer spreads to the lung but the original location of the cancer in the body is not known. This is called cancer of unknown primary (CUP).

Where lung metastases occur

Lung metastases can occur anywhere in the lung. Most people will have multiple lung metastases. Single lung metastases are uncommon and occur in only a small number of people with cancer. Single lung metastases occur most often with sarcomas.

 

Find out more about signs and symptoms, diagnosis, treatment, follow-up after treatment and supportive care for lung metastases.

References

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We can give information about cancer care and support services in Canada only. To find a cancer organization in your country, visit Union for International Cancer Control or International Cancer Information Service Group.