One of the most common types of cancer is lung cancer, of which there are two major types. First is non-small cell lung cancer or NSCLC. The second is small cell lung cancer or SCLC. This is also referred to as oat cell cancer, oat cell carcinoma or small cell undifferentiated carcinoma. Cancer cells of this type typically grow at a faster rate and metastasize readily, meaning they can spread throughout the body. Because of this, cancer gets diagnosed only after it has already spread to the rest of the body. This makes a recovery a lot less likely.
There haven't been any successful studies yet on how SCLC comes about. But the cause may be due to some changes in the lungs that are precancerous and may lead to the disease. Such changes can affect the cell DNA in the lungs making them grow faster. If such changes occur in significant amounts, the cells can become cancerous. Since blood vessels provide nutrition to body cells, including these cancer cells, this will allow and encourage the cancer cells to develop into tumors. After some time, the cancer cells can separate from the primary tumor then spread to different body parts.
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