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Doctor insights on: What Happens If Lung Cancer Is Untreated

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Dr. Barry Rosen
4,224 doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


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How long do lung cancer patients survive if left untreated?

How long do lung cancer patients survive if left untreated?

Depends: Depending on the stage and over all condition. It can range frim few weeks to many months. ...Read more

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If untreated how long does it take stage 1 lung cancer togetbto stage 4?

If untreated how long does it take stage 1 lung cancer togetbto stage 4?

Variable: Depends on cell type, location, and other risk factors. Small cell cancer is fast and less than a year. Some slow squamous may be years. ...Read more

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What happens to the lungs when you have lung cancer?

What happens to the lungs when you have lung cancer?

Depends on location: When a cancer of the lung starts growing, the symptoms it produces depend on its location. A tumor growing at the periphery of the lung may involve surrounding structures, causing a variety of symptoms, such as pain, fluid in the chest, etc. In the airway, it can cause obstruction, causing breathing problems or bleeding and infection. Location, location, location. ...Read more

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I could possibly have lung cancer, what happens during this?

I could possibly have lung cancer, what happens during this?

Varies: Mass, spot on lung x-ray ct scan possibly: bronchoscope needle biopsy or removal by vats or open operation. If mediastinal nodes or pet scan may have mediastinoscopy. ...Read more

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What happens during the last few weeks of small cell lung cancer?

What happens during the last few weeks of small cell lung cancer?

End of life: If small cell carcinoma is terminal, it means that all means of treatment have failed. Symptoms, including shortness of breath, fatigue, and pain will become more pronounced. This is the time to have comfort care measures in place to make the end as bearable as possible. Pain control at this point is critical. ...Read more

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Would you have symptoms of small cell lung cancer for 18 months prior to diagnosis, or does small cell grow too rapidly for this to happen?

Would you have symptoms of small cell lung cancer for 18 months prior to diagnosis, or does small cell grow too rapidly for this to happen?

Depends on the grade: After a biopsy, when small cell carcinoma is diagnosed, it is often given a "grade" by the pathologist (e.g., low-grade or high-grade) based on the appearance under a microscope. There are small cell cancers that can grow slowly, & only be discovered on screening CT scans (not causing any symptoms). Others cause symptoms & spread quickly (high-grade). Not all small cell cancers behave alike. ...Read more

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What happens if no chemo .. what is it like for someone to die from lung cancer?

What happens if no chemo .. what is it like for someone to die from lung cancer?

Comfort care time: If someone has advanced lung cancer and treatment is not an option, then the focus should be on making sure any symptoms they have or may develop will be controlled. Hospice may be an option. End stage lung cancer patients may experience shortness of breath or pain (in the chest or other sites where the cancer has spread). There may be constipation from pain medications/lack of appetite. ...Read more

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What happens in the last few stages of terminal lung cancer so i know what to expect please? She is on 24hr oxygen.

What happens in the last few stages of terminal lung cancer so i know what to expect please? She is on 24hr oxygen.

Unpredictable: Lungs may fail with shortness of breath and blue skin. Right side of heart may fail with shortness of breath and fluid overload. Bain metastasis may cause headache or coma. Infection may be sudden and cause padding in hours. Cherish each day. Discuss her wishes for the last days. I m glad you had one another. ...Read more

Lung (Definition)

Deoxygenated blood enters the lungs from the right side of the heart and travels to the lungs. When you inspire, oxygen flows into the lungs, transverses the capilliares and attaches to hemoglobin down a gradient. At the same time, co2 diffuses into the capilaries and is expelled with exhalation. Oxygen rich blood then flows to the left side of the heart and into the ...Read more


Dr. David Cooke
827 doctors shared insights

Lung Cancer (Definition)

From national cancer institute: "cancer that forms in tissues of the lung, usually in the cells lining air passages. The two main types are small cell lung cancer and non-small cell lung cancer. These types are diagnosed based on how the cells ...Read more