Lung Cancer: Bad and the Worst

In terms of deaths caused by several types of cancer, lung cancer ranks second to breast cancer. The National Cancer Institute recently reported that about 172,570 new cases of lung cancer will be reported this year that 163,510 Americans die from this disease.

Lung cancer is caused primarily by smoking. One expert says that in the case of lung carcinoma, small cell (cancer), which is almost always caused by smoking.

Lung cancer is called lung cancer because it starts in the lungs. The right lung has three sections, the left lung has two. Each section is called a lobe. Sometimes the term "lung cancer" is used to refer to lung cancer as most lung cancers start in one of the two breathing tubes, the bronchi in the lungs.

There are two main types of lung cancer. One is lung cancer, small cell (SCLC) mentioned in the previous paragraph. The other is the non-small cell lung cancer (NSCLC).

The metastatic non-small cell lung has three subtypes: adenocarcinoma, squamous cell carcinoma and large cell undifferentiated carcinoma. NSCLC is the least "serious" of the two types. In fact, if detected early, it may be cured with surgery.

Andenocarcinoma accounts for about 40 percent of lung cancer cases in the U.S. It is the most common cancer among women and can be seen in nonsmokers. Squamous cell carcinoma accounts for about 30 to 35 percent of lung cancers and tends to remain localized in the breast and other cancers of the lung. Large cell undifferentiated carcinoma accounts for only about 5 to 15 percent of lung cancers in the U.S. The incidence of this cancer appears to be decreasing.

The worst and most aggressive form of lung cancer is small cell lung. That represents only about 15 to 20 percent of all lung cancers. It spreads to the lymph nodes and other organs more quickly than NSCLC, but it seems more sensitive to chemotherapy drugs.

The non-small cell lung cancer cells were described in steps? Stage I to IV. WebMD reports recently survival rates of NSCLC as:

· Stage 1A or 1B, with no involvement of lymph nodes have a survival rate at five years from 43 to 64 percent when treated with surgery.

· Stage IIA or IIB with lymph node only, when treated with surgery, has a survival rate at five years 20 to 40 percent.

· Stage IIIA with lymph node only in the center of the chest when treated with surgery has a survival rate at five years from 15 to 25 percent.

· Stage IIIB with lymph node involvement in the chest and neck, when treated with radiation, no other treatment has a survival rate at five years from five to seven percent.

· Stage IIIB with lymph node involvement in the chest and neck, when treated with radiation and chemotherapy has a survival rate at five years from seven to 17 percent.

· Stage IV with extensive lymph node involvement or cancer that has spread to other organs, hen treated with chemotherapy and palliative care to reduce symptoms and increase comfort has a survival rate at one year.

The outlook is much bleaker for patients with lung cancer small cell. This form of cancer is in two stages: limited or extensive. The limited version is found only in one lung and nearby lymph nodes. The extensive type has spread outside the lungs to other parts of the breast or body (metastasis). Limited SCLC when treated with chemotherapy and radiotherapy have a median survival of 18 to 20 months. The extensive form of SCLC when treated with chemotherapy has a survival time of 10 to 12 months. TTWO year survival rate is one to three percent, and the survival rate five years less than two percent.

Most people diagnosed with SCLC will die despite the best treatment available.

While surgery plays the most important in the treatment of metastatic non-small cell lung, chemotherapy is always the preferred treatment for lung cancer, small cell. In the case of limited SCLC stage, radiation therapy can also be used as cancer is still localized in the chest area, where the radiation can be focused.

The cells of small cell lung cancer are so small that you can see from the pictures. Even in the case of limited stage SCLC, it is possible that some cells break away from the primary cancer and migrate to any part of the body. For this reason, chemotherapy is the preferred treatment because it treats the whole body, unlike radiation, which should focus on a selected area. The event, chemotherapy is the preferred treatment for both limited and extensive stage lung cancer.

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