Stage IV lung cancer is practically incurable. At stage 4 the cancer has spread (metastasis) in distant organs (liver, brain, bones, etc.). Surgical treatment at stage 4 is out of the question and only chemotherapy and radiotherapy can be considered. Therapy at stage 4 is only palliative with no chances for healing.
There isnât such a medical term as âblood cancerâ. Cancer is a malignant tumor that originates from epithelial cells. Blood cells (red and white) are not epithelial so it isnât logical to say âblood cancerâ.
Malignant tumors of the blood cells are called leukemia and lymphoma. To be more precise, leukemia originates from the bone marrow where all blood cells are produced. Lymphomas can originate from the bone marrow and any lymph tissue outside the bone marrow (lien, lymph nodes, mucosal membranes, etc.
If you meant are the lung cancerâs cells present in the blood they are called metastases.
Pain is not a parameter for estimating the stage and the prognosis of the malignant disease.
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