Stages of Lung Cancer

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Stages of Lung Cancer

Stages of Lung Cancer

Lung cancer is a disease that starts forming in tissues of the lung, in the cells of the air passages. Lungs have two springy organs in your chest from that we breathe in oxygen and release carbon dioxide. It is known as cancer leading to death in both men and women.

Lung cancer is the third most common type of cancer; it starts when the cells start dividing in the lungs, and it is uncontrollable. And this causes a tumor to grow and reduces the person’s ability to breathe.

Lung cancer can spread in any part of the lung, but nearly 90-95% of cancer arises from epithelial tissues; these cell linings are more significant and smaller airways in bronchi & bronchioles. Lung cancer is also called bronchogenic carcinomas. Cancer can begin from the pleura; it is also known as mesotheliomas or supporting tissues for the lungs.

What are the stages of lung cancer?

There are four stages of cancer from stage 1 to stage 4, the doctors who are oncologist specialist uses this treatment to control cancer TMN, and these have sub-stages.

T- It tells the size of the tumor, and the stages are:

TX: It is a primary tumor that can’t be measured

T0: In T0, there is no evidence of the tumor found

T1: T1 tumor is 8 cm less is around 3inches

T2: Tumor T2 is more prominent in size of 8 cm

T3: T3 tumor found in more than in one place &located on the same bone

    N- Stands for the spread of lymph nodes.

N0: In the N0 stage, cancer will not spread to the lymph nodes near the tumor

N1: N1stage cancer has extended to nearby lymph nodes

M- Defines the metastasis to distant organs.

M0: In the M0 stage, cancer has not spread outside the lymph nodes or is somewhat nearer.

M1: Distant metastasis is the stage in which cancer will spread.

M1a: In M1a, cancer will apply to the lungs.

M1b: Cancer will extend to all other sites of the body.

Lung cancer is commonly known as bronchogenic carcinoma because they start in bronchi within the lungs.

what are the two primary types of lung cancer?

There is some classification that depends on the microscopic appearance of the tumor cells.

Small cell lung cancer (SCLC):

Small cell lung cancer (SCLC), which contains nearly 20% of lung cancer, is the most aggressive and fast-growing of cells lung cancer, and they can spread in other parts of lymph nodes. This type of lung cancer is known as Oat-Cell. SCLC combined into two types they are:

• Small oat-cell cancer

• Combined small cell cancer

Non-Small cell lung cancer (NSCLC):

Non-small cell lung cancer which nearly 80% of lung cancer, and they are most types of lung cancer and they are slow causing cells in the lungs, and they can show significantly fewer symptoms, or it shows no signs, and they divide into several main types:

Adenocarcinoma of the lung:

This type of cancer is known as lung cancer, and it consists of nearly 30% of overall cases and 40% in small cells of lung cancer occurrences. Adenocarcinoma cancer found in cancer like breast cancer, prostate, and colorectal, and is located in the outer part of the lung in the gland, which secretes mucus and helps to breathe.

Squamous cells:

A squamous cell found in the center of lung cancer; when the bronchi are more significant, they join the trachea of the lung. They are responsible for around 30% of NSCLC; they are called epidermis cancer linked to smoking.

Large cells undifferentiated Carcinomas: 

Large cell cancer cells grow very fast, and they can found in part of the lung; they usually found 10 to 15% in all cases of NSCLC.

Cancer stages will tell you how far the cancer cells have spread and what treatment you should get as soon as you are diagnosed with cancer; get the medicine as quickly as possible before spreading to another part of the body.

Non-small cell lung cancer has four stages:


Stage 1: In stage 1, a tumor is found in the lung, but it will not spread to the outer side of the lung.

Stage 1A: In this stage, cancer will affect the lung only with 3cm or smaller tumors which has not spread into the lymph nodes or other areas.

Stage 1B: In this stage, the lung cancer tumor will be larger than 3 cm, but it will be smaller than 4cm which has not spread in metastasized to the lymph nodes.

Lung cancer, which measures the tumor of $cm or smaller than that it will at least have one of the following criteria:

Cancer will reach the main branches; it is a large airway that connects the trachea to the lung but does not carina; it is a ridge below the trachea that divides the opening of the left and right bronchi. Cancer will reach the innermost tissues that cover the lung.

Stage 2: Cancer will not found in the lung but will locate nearby the lymph nodes.

Stage 2: is divided into two subtypes:

Stage 2A: This tumor is smaller than 5cm but is more significant than 4cm and not metastasized into the lymph nodes.

Stage 2B: Tumor measures 5cm or smaller and has reached the lymph nodes located in the same place of the chest from where the tumor started into the lymph nodes in the lungs are close to bronchitis. I will find it in the chest wall, inner lining of the chest wall, or in the tissues that lie outside of the sac surrounding the chest.

Stage 3A:  Cancer cells will be located in the lymph nodes but only on the one side of the chest where cancer firstly began growing.

Stage 3B:  In this stage, cancer will not spread into lymph nodes.

Stage 4:  Cancer cells will increase on both the side of the lungs in the area around the lungs to other organs.

Small-cell lung cancer has two stages

Limited Stage:

 These cells spread throughout the one lung

It will apply to the opposite side of the lung

Extensive stage:

Will spread to lymph nodes in the opposite direction

Applied to fluid around the lung

Spread to bone marrow

Spread to distant organs


Where does lung cancer spread first?

Stages of Lung Cancer Lung cancer will spread firstly into the lymph nodes inside the lungs, surrounded by the airways. Starts occurring in stage2 of NSCLC or the limited stage of SCLC, cancer cells will pass through the chest area from starting the tumor and other parts of the body

How fast does lung cancer spread without treatment?

Small cell lung cancer is fasting growing cells, leading to death often with the six months if the patient does not get the treatment though SCLC is treated with chemotherapy and sometimes lung cancer cells will grow slowly.

Can chemo kill lung cancer?

Chemotherapy is a drug that goes into the body to kill the cancer cells wherever they are present in the body. However, it’s a primary treatment for treating small cell lung cancer & non-cell lung cancer; sometimes, doctors will refer you to chemotherapy rather than surgery.

What are the odds of beating lung cancer?

If someone has lung cancer, then the first thing comes to is what is the survival chance of living lung cancer is said one of the most challenging cancer to beat. Understanding the survival rate is calculating the percentage. The survival rate is nearly about 19%; out of 100 people, 19 people will be diagnosed with lung cancer and live up to 5 years.

Is there any hope to survive for Lung Cancer patients?

You can survive when you take a proper treatment what and all the sessions doctor has said you or preferred you to undergo for the treatment so live with several years. The treatments are chemotherapy, radiation therapy, and surgery.


This information on this article is not intended to be a substitute for professional medical advice, diagnosis or treatment. All content in this site contained through this Web site is for general information purposes only.

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