Where did Lung Cancer Originate
Lung cancer originate is the uncontrolled growth of abnormal
cells that start off in one or both lungs typically in the cells that line the
air passages. The abnormal cells do not expand into healthy lung tissue, they divide
rapidly and form tumors.
Malignant tumors, the extra dangerous ones, spread to other
parts of the body either from side to side the bloodstream or the lymphatic
system. Metastasis refers to cancer spreading beyond its site of origin to
other parts of the body. When cancer spreads it is much harder to treat
successfully.