The stage 4 lung cancer is the most advanced form of lung cancer disease. Lung cancer is starts when abnormal cell growing out of control in lung. This abnormal cell invades nearby tissues and then form tumors. This lung cancer develops in lung area and able to affect any other parts of respiratory system as complications. The lung cancer cells are able to spreads, metasizes into lymph nodes and other body parts and organs. Lung cancer divided into two types, the small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). Small cell lung cancer spread and growth quicker rather than non-small cell lung cancer and lung cancer become the most leading cancer death in the world. The symptom of first sign in lung cancer includes coughing and feeling short breathing, pain in chest, and blood in mucus when cough up. The Ct-scan test will test your cancer cell type and stage to measure your cancer size and the cancer spread in your body.

The Stage 4 Lung Cancer of Life Expectancy
In this stage 4 lung cancer, the cancer cell has been metasize and spread beyond the lungs area into other body parts. There 40% from this non-small cell lung cancer was diagnosed this diseases when they are already in 4 stage.  The five-year survival rate for patient who has diagnosed with this lung cancer stage 4 is less than 10%. Stage 4-lung cancer can be in condition with T or N, that means for tumor size is capable to be in any size and may not possibility in have or not have grown into lymph nodes nearby. The variables that affect into stage 4 lung cancer life expectancy is varies among different patient.  The factors includes than particular lung cancer type, location of your cancer lung, ages( younger people tend to have longer life rather than older lung cancer people), general health time condition when diagnosed, respond for the treatment that taken, and other health condition that able to lower stage 4 lung cancer rate of life expectancy.

Stage 4 Lung Cancer Treatment
The stage 4 lung cancer is able to treat. However, the surgery will not able to remove all the tumors. The chemotherapy, immunotherapy, and targeted therapies are able to improve the survival rate and help patients with cancer lung symptom.  The respond from your stage 4 lung cancer treatment will influence your life expectancy. 

The small cell lung cancer also called with oat cell cancer. Small cell lung cancer or SCLC is growing faster rather than other types of lung cancer. This cancer spreads much faster than other non-small cell lung cancer. There are two types of small cell lung cancer; small cell carcinoma (oat cell cancer) and combined small cell carcinoma. Most of SCLC includes into oat cell type. In general, lung cancer is condition where lung cell started to grow rapidly as in uncontrolled manner. About 1% of lung cancer is SCLC and it is more common experienced by men rather than women. The cancer usually develops from breathing tubes (bronchi) in chest center. This cancer is the most aggressive form of lung cancer that very quickly to grow and create tumors and spread rapidly into other organs such as brain, bone and liver.

Small Cell Lung Cancer Symptom
The symptom for small cell lung cancer is similar with other symptom disease; therefore, you need to consult with your doctor when you have these symptoms. Due to smoker, cough that does not go away and get worsen over time is the first signs that you need to aware for the cancer symptom. The condition that trouble in breathing, discomfort in chest and pain, wheezing, hoarseness, trouble in swallowing, unexplained weight loss, feeling very tired all day, and there is swelling in your face and veins in neck can be a possibilities for your small cell lung cancer symptom.

Small Cell Lung Cancer Risking Factors
Smoking is the most common caused from lung cancer. A person who starts smoking in earlier ages, more often to smokes and years from person smoking become the greater risk factor from lung cancer risks.  Person who stops smoking will reduce the risk as the year passes by. Other risks factors from SCLC exposed to be second hand smoke, have family history with lung cancer, exposed with chromium, arsenic, asbestos, soot and tar in workplace, exposed with radon, and live in environment with heavy air pollution.
Small Cell Lung Cancer Stages
There is two stage of SCLC, the first is limited stage and the second is extensive stage.  The limited stage cancer is condition where the cancer starts develop and spread into area among lungs and other lymph nodes beyond collarbone. In extensive stage small cell lung cancer, the cancer cell has been spreads over the lungs area or between the lungs area and the lymph nodes beyond the collarbone into other body places.