A member asked:

Are tumors in the lung usually a result of metastatic cancer?

9 doctors weighed in across 2 answers
Dr. Michael Thompson answered

Specializes in Hematology and Oncology

No: Lung "tumors" may be benign or malignant (=cancer). Cancers in the lung may be primary lung cancer (eg, small cell or non-small cell lung cancer, mesothelioma) or other cancers (eg lymphoma, thymoma, etc). Cancers from other primaries (eg breast, colon, etc) may spread (metastasize) to the lung.

Answered 12/28/2018

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Dr. Sabha Ganai answered

Specializes in Surgical Oncology

Often: They are either metastatic lesions that spread from other parts of the body, or they are "primary" lung cancers that originated in the lung tissue. Most often if multiple tumors, they would be metastatic lesions, but if there was a single spot seen in a smoker, it may be a primary tumor.

Answered 12/28/2018

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