Is it possible to have breast cancer cells in lung cancer?

I think breast ca: Physicians do speak a "foreign tongue" at times. Many patients ask me when the have spread of cancer to a bone, if they have bone cancer. Breast cancer cells in lung cancer are more likely breast cancer cells that have spread to the lung. There would be a cancerous mass in the lung and a biopsy would show breast cancer cells. This would be metastatic cancer to the lung. I think that is your issue.

Yes: Lung cancer - as in other organs where cancer is found include primary ( from within) and secondary ( as the result of cancer spread) cancers. Breast cancer can spread to brain, bone, lung, and liver.

Yes: It means the origin of the tumor is from the breast. It is a primary breast cancer that has spread or metastasized to the lung.