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Doctor insights on: Difference Between Cancerous Lung Tissue And Normal Lung Tissue

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Dr. Barry Rosen
4,287 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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Bronchoscope Dr said No cancer this am so what could it be if Hiler mass & Mediastinal Lymphadenopathy in lung?Tissue sent out after pathologist check

Bronchoscope Dr said No cancer this am so what could it be if Hiler mass & Mediastinal Lymphadenopathy in lung?Tissue sent out after pathologist check

A few possibilities: Several things other than cancer can cause such abnormalities. Various infections and sarcoidosis come to mind. There's no way for a forum doctor to say anything more. The doctor(s) treating you or who did the bronchoscopy are the best to ask. ...Read more

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What is difference between lung disease and lung cancer ?

What is difference between lung disease and lung cancer ?

Several: Pneumonia copd emphysema other infections pneumothorax are all lung disease. Cancer is malignant growth of some cell type squamous adeno small cell etc. ...Read more

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What's the difference between lung cancer and emphysema?

What's the difference between lung cancer and emphysema?

COPD versus cancer: In emphysema the air sacs of the lung (alveoli) are damaged. The result is the lung "traps air in the damaged sacs and it becomes hard to exhale. The lung becomes over inflated. Breathing (getting oxygen in and carbon dioxide out) are progressively harder. In lung cancer a cell is damaged and can not regulate its growth, ( ie becomes cancerous) with tumor formation. Both are linked to smoking. ...Read more

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What is the difference between emphysema and lung cancer?

What is the difference between emphysema and lung cancer?

Different things: Emphysema is destruction of lung tissue from (most often) smoking. Lung cancer is an abnormal growth of lung tissue that can cause destruction of many tissues, not just lung. They are completely different diseases. But, because the most common cause of lung cancer is smoking, many times patients with lung cancer have emphysema and vice versa. ...Read more

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What is the difference between the stage and the grade of lung cancer?

What is the difference between the stage and the grade of lung cancer?

A lot: Stage refers to extent of cancer: generally stage 1 & 2 are early cancers; stage 3 involves spread to the nodes or structures in the middle of the chest; stage 4 involves spread to both lungs or other organs. Grade refers to the degree of abnormal appearance of the cancer when seen under the microscope- usually grades range from 1-3. ...Read more

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What's the difference between small cell and non-small cell lung cancer?

What's the difference between small cell and non-small cell lung cancer?

Everything: Small cell lung cancer is almost completely different than non small cell- the only thing the same is that it is located on the lung and may give the same symptoms. They are different in molecular biology level, they look and behave differently. Small cell behaves more agressive- like systemic disease even from the first presentation; have different treatment and prognosis .D/w your oncologist. ...Read more

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What's the difference between non-small cell lung cancer and small-cell?

What's the difference between non-small cell lung cancer and small-cell?

Entirely different: Different types of cancer. Small cell multiplies fast and is considered spread at the time of diagnosis. Because of that, it may also respond better to chemotherapy. Non-small-cell grows more slowly and if found in an early stage, may be curative by surgery. ...Read more

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What is the difference between stage 3a and stage 3b of lung cancer in terms of tnm?

What is the difference between stage 3a and stage 3b of lung cancer in terms of tnm?

3b is more advanced: Although both stages are serious, stage 3b tends to have more severe lymph node spread, usually meaning spread out side the affected side of the chest to the collar bone, neck or lymph nodes in the opposite chest. The 5 year survival with 3a is 20-25%, with 3b is 10%. ...Read more

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What is the difference between small cell lung cancer and non-small cell lung cancer?

What is the difference between small cell lung cancer and non-small cell lung cancer?

Different cell types: lsmall cell cancer of the ung is a neuroendocrine tumor responding to chemo such as the adriamycins (doxorubicin). Non small cell cancer represents the adenocarcinomas and squamous cell cancers requiring a different groujp of drugs that usually include the platinums and the newer monoclonal antibodies. ...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


Tissue (Definition)

The body is composed of tissue that are classically described as beiing derived from three basic embyonic layers known as the endoderm, mesoderm and ectoderm that then differentiate into the structures that compose the body such as skin, soft tissues, bone, muscle, organs, etc. Stem cells are not differentiated and have the potential to ...Read more